“I HATE tall, thin, white men…”
Whoa!! That got my attention!
I had to hear the rest.
“…they have all the advantages!”
What’s she talking about? Me? I never had any advantages! I’ve worked for all that I’ve got! My appearance had nothing do to with it. Who needs “tall”? How about Napoleon? Or Truman? Or… Gary Coleman? Ok, he probably doesn’t count. Eddie the 3’7” baseball player from way back — how about him?
Ok, I’ll give her a break. It’s probably true that over time most leaders are tall not short. But thin? How could that help? What about Taft? He was a real porker. And TR — he was a little chunky, wasn’t he? How about Oliver Hardy? Al Roker and Kate Smith?
There are plenty of examples of successful big people. But maybe more are thin — who knows?? Skinny might be a small advantage. All right then, what about being a white — is that an advantage? Well, unfortunately that’s a no-brainer in our society. And man vs. woman — no contest, again.
That got me to thinking — instead of being a tall, skinny, white boy from Berkeley, what if I were a short, fat, black lady from Tupelo? Would I be where I am — leader of a really cool computer company? No way!!
I was listening to NPR while driving to work in the early 90’s when this lady’s voice woke me up. Not really listening— I was mostly stewing over another #&#&(@#@*^ end of the quarter. That damn hockey stick. We’d been public since ’83, and all but a few quarters had been nail biters. Why do so many sales happen the last few days of that silly 3-month measuring period?
The point of all this is: looking back, it’s clear now that I was delusional when I tried to start Stratus. I thought I could do it myself. I would go out and get a bunch of investors excited about my plan, then put a team together and get things going. I could do this because I was such great, accomplished computer guy. Former VP at Data General, and before that in charge of development for HP’s highly successful HP 3000. How could they resist?
I’d published about a hundred business plans, four versions, during the fall of 1979. The vast majority went to potential investors, not team members. My co-founder Bob Freiburghouse didn’t get a plan until November, and Gardner Hendrie, the third founder, not until December!! Clearly I didn’t have a clue about how you raise money for a big venture like a computer company. I thought “they” would just hand me the cash. The result was I wasted a whole bunch of time during the first few months of my attempts to launch a company.
But in hindsight it wasn’t all bad. If things had happened more quickly the technology wouldn’t have been there — specifically the Motorola 68000 processor chip. I didn’t know it at the time but ultimately the entire plan hinged on that chip, and when we finally did get going we were on the leading edge — one of the first to use it.
This gets me to one of my pet peeves. And jealousies. Let’s face it — I’m a one-hit wonder. I’ve only started one successful company. (I won’t totally count myself out —maybe there’s still time for another. All I need is an idea…..) I am totally impressed by so called “serial entrepreneurs”. Folks that have done it 2 or more times. And I don’t mean failures — folks who have started 2 or more successful technology companies. They are really something. To have an idea for a product or service that some big market actually wants — and to do that more than once! It’s amazing.
On top of this, it takes a certain amount of luck and timing to get a successful company off the ground. I don’t care what anyone says, no one did it all by themselves. Someone helped them, or some thing — like a key piece of technology. Or a competitor really screwing up. Or popping out as a tall, thin, white baby during the middle of the 20th century— not in Somalia or some other third world country, but the good old USA. Talk about luck! Talk about something you had no control over!!
I’m really bugged by people, particularly in the tech industry, who were part of one successful startup and then figured it was all about them — they did it. They had the power, brains, foresight, and could easily do it again. Frequently their next ventures have really telling names, like “Fortune Systems” (we’re going to make a fortune) or “Stellar” (we are the brightest) or, and this is the best, “Encore”. That was formed by three luminaries in the computer business. These men were so exceptional on their own, just imagine how great they would be as a team!! They could not miss.
Don’t fool yourself into thinking that venture capitalists are smart. They’re not — at least, not any smarter than the rest of us. They get snowed and enamored just like the common folk. Some of these idiots poured money into Encore, a company whose parking lot looked like a Rolls Royce dealership. It was so top heavy with high paid managers there was little money left for workers. I don’t think anything useful was ever salvaged out of the millions that when down the drain with Encore. But I’m not picking on them — there are plenty others. I’m just trying to point out how tough it is to do it again, how your ego needs to be grounded, and how much of what goes into a big success has to do with luck and timing.
Another one: “Trilogy” by Gene Amdahl. I guess he called it by that name because first he was highly successful at IBM, then he started and succeeded at Amdahl, the first IBM knock-off company, and Trilogy would be his third time. He managed to take the company public without a product!! Shows how much the world fell for his self-aggrandizement. Amdahl must have come back to earth when Trilogy went belly up. Ironically, we at Stratus benefited from Amdahl's excesses — we wound up buying his beautiful manufacturing plant outside of Dublin Ireland to be used as our international manufacturing division. It was spectacular!! — huge offices, gilded railings on circular staircase, etc. We actually had to spend money erasing some of the opulence. Or, rather, the Irish government did. They gave us a pretty sweet deal to start a plant in their country in the late 80’s.
My bottom line on all of this: people who start more than one successful high-tech company are pretty amazing. I am totally envious. And NOBODY did it all by themselves. Consider Hewlett and Packard — and their mentor Dr. Terman who got Bill to drag Dave back west from GE in Schenectady to start a company. And WW II didn’t hurt their business much.
Or Steve Jobs — where would he be without The Woz? Or Bill Gates without Gary Kildall? Who, you say? Kildall will be remembered for having made the worst business decision in the HISTORY OF THE UNIVERSE!!! He wouldn’t sign IBM’s confidentially agreement when they tried to buy his operating system in 1979! Or rather, his wife wouldn’t sign — good old Gary was out flying his airplane. As a consequence IBM had to more or less force Bill Gates to provide them with an OS for their new personal computer. So Billy Boy bought an awful piece of code - QDOS— then patched it up a little, and the rest is history. Where would Bill be without Gary?
Which leads me to the other Bill. Call me Little Bill. Where would I be without: first, my wonderful wife Marian. Second Bob Freiburghouse. Third Gardner Hendrie. Nowhere, that’s where. Zip zero.
I know I’m rambling but I had a few things to say before starting on Stratus.
Timing is everything
1980 was a great year to start a computer company. Venture capital was becoming more plentiful. A lower capital gains tax made these investments more profitable, and much more money was available than during the '70's. Plus, a fantastic new technology was on the horizon — a very powerful CPU on a chip, powerful enough to make a “real” computer. Finally, the job market for engineers was very good — which meant there was less risk for quitting and joining a startup, even if the risks of failure were high.
The old model of what it took to be successful in computers still applied. Lock in your customers with your design. Put unique features in your operating system and languages to make it nearly impossible to switch from one company to another. Free wheeling — the hardware and software engineers could do almost anything. There was no such thing as “open” computing — that term wasn’t coined until Sun Microsystems came along years later.
When computing first happened in the ’50’s and ’60’s every manufacture had its own unique design. An IBM computer was totally different from a Univac, which was different from CDC, Xerox, Honeywell, etc. It was basically impossible to take a program from one company's computer and run it on another, without a total re-write. Even within a manufacturer's own product line of there was no compatibility. Something written for a CDC 160A would not run on a CDC 3600. An IBM 7090 looked nothing like the old 701.
That changed in 1964 with the IBM 360 line. For the first time a “family” of computers was offered, with different levels of power and cost, but with the very important feature of software compatibility. Initially there were 6 members of the 360 family: the models 30, 40, 50, 60, 62, and 70. Eventually there would be more models, and later the IBM 370 family. The unique thing about the 360 was that programs written for one model would run on all the rest. This was groundbreaking. IBM could lock their customers in. Stay within the 360 family — why go to the expense of switching to CDC or whomever? That would cost you a rewrite of your software. Just stay with us and move up the IBM product line. (Programs written on those old IBM 360 computers still work on today's IBM mainframes.)
Eventually everyone came out with their own family of computers. But, each company's family was different from the others. There was no simple way to move programs from IBM to CDC to RCA to GE, etc. You had to be really pissed off at your vendor to go to that expense.
This was still the environment when we started in 1980. There was no standard instruction set or operating system. There had been some progress in making the key programming languages standard — Cobol, Fortran, etc. But with a few tricky operating system features it was still relatively easy for the computer manufacturer to lock their customers to their design.
So, if you started a new computer company in the early ’80’s you didn’t have to worry about compatibility. You could use whatever instruction set that you wanted. And invent your own operating system if you had access to the few number of people who could do that. In other words, you could be different. You could differentiate. Since a new company didn’t have any old customers, backward compatibility was not an issue. The engineers could be free. It was the best environment for inventing creative hardware and software and it was a perfect time to start a new computer company.
Ok, you’ve just quit your job. Five mouths to feed, trying to maintain a middle class life style, very limited cash, no money coming in, and a pipe-dream about starting a computer company. What to do next??? Easy!!! ROAD TRIP!!!
In late July 1979 we all piled in to our yellow Chevy van — the one I bought while at HP three years earlier and was still making payments on. It just seemed like the thing to do — take some time off, relax with Marian and our kids. I was pretty sure the next couple of years would be intense, so why not chill for a short while?
We drove to Montreal, camped in Vermont, and generally had a swell family va-cay for about 10 days. I have always believed in vacations and have always taken them. Marian and I have always been vagabonds, enjoyed traveling, loving to see this great big country of ours.
When we got back it was time to get to work. I had many of the ideas for a business plan in my head and began writing things down. This is where my MBA from Santa Clara really paid off. I wouldn’t have had a clue about how to do a business plan with out it. Or how to read financial statements, understand the difference between a balance sheet and an income statement, etc. They don’t teach that stuff to math geeks. Some say that much of what you learn in college is never used in your career and I agree with that for the most part. But there is no question that without the education from Santa Clara that I completed in 1974 I could not have produced a business plan on my own. There could be no outside help. I was scared shitless by Data General. I couldn’t make a move without thinking what they might do to me. So, no outsiders — just Marian and me.
How do we type it up? All we had was an old Underwood mechanical typewriter — could you imagine all the work it would take with corrections and revisions? IBM, it turns out, had a great product that we could lease — the IBM Memory Typewriter. It was basically and IBM Selectric typewriter with some type of crude processor and enough memory to store 30 pages! For 170 bucks a month I could rent the thing. And, get this: rental included an IBM service guy coming to our house once a month to check it out!! How could they make money on that deal? It just shows how IBM dominated everything back then, and they would take on a money losing deal if it meant grabbing market share, no matter how small the market.
The business plan was pretty normal — stuff you would learn at MBA school. I even had a section labeled “Technical Contribution” where I described the plan to use hardware for fault tolerance, not software. Dave Packard’s speeches about the necessity of technical contributions were still ringing in my ears.
The plan was pretty cool, I thought. But looking back it is obvious now the plan lacked one key element: people! I was the only human being named. No engineering person, no one for marketing or sales. No finance guru. They would all come later, after investors threw their cash at me.
The other big problem was that this plan would have failed. Minor detail, but no chance the product would have been a hit. I was aware of work being done on powerful microprocessors, but they weren’t here yet. Zilog was developing the Z8000 but it would have been very hard to do virtual memory with that chip. Motorola had announced something called the 68000 which looked very interesting -- it had a true 32-bit address space. But they hadn’t yet talked about deliveries. I couldn’t count on them.
My plan was to build three conventional CPU’s out of TTL (transistor-transistor logic, the de rigueur of the day), and run them in lock step. What I totally overlooked was that this would have been way too expensive — only a very small market would pay for this much triplicated hardware. The plan would not fly. This company would have failed. It's interesting that as I talked to folks about investing or joining no one picked up on the obvious problem. Maybe they were just too polite to say “Nice plan, Bill. Too bad it won’t work.” Or clueless like me.
I was going to take a page out of Tandem’s book and copy Digital Equipment’s very successful VAX machine. It was a good 32-bit machine, with lots of software that maybe I could take advantage of or steal from DEC, like my Tandem friends did to HP and the 3000 back in '74. And who needs another instruction set anyway? Why not just take one that works?
Why not copy DG’s 32-bit Eclipse, you ask? ARE YOU FRIGG’EN CRAZY????!!!!! Data General still scared the living be-Jesus out of me — I wanted nothing to do with them. I wanted to get out of town asap and get this thing going back in my native California.
It’s kind of funny, but Data General still scares me, and they disappeared decades ago after being gobbled up by EMC….
How about a name for the company? What are we going to call it? I don’t know about other entrepreneurs but I spent way too much time coming up with a name. I wasn’t going to call it Foster Computer. Foster Freeze works, and Foster Lager, but that name was no good for a computer company. Besides, putting your name on the letterhead seems egotistical.
In 1978 when I first started writing down ideas I had used “Nimbus” as a name of my fictitious company — it’s a type of cloud. But now the name seemed weird — just didn’t roll off the tongue. Ok, the year is 1979, the end of a decade, about to start a new one. How about Decade Computer? Neither I nor Marian was very excited but we went with it — at least this gave us something to put on the plan. It turns out as time went on no one liked “Decade”. “Sounds like you’ll only last 10 years”, one VC told me. Or, people thought it was “DEC-Aide”, like we were somehow aiding Digital Equipment Corp. Once my co-founders Bob and Gardner joined me months later we resolved to change the name. But, for the first 6 months of Stratus’ life it was called Decade Computer.
The business plan was coming together. Well then, how about money? A small detail, but you need a couple of million bucks to get off the ground. On my very last day at DG my friend and cohort Carl Carmen came to see me. Carl ran the hardware side of development, while I ran software. He told me about a venture capitalist in Boston by the name of Charlie Waite. The company was Greylock — old, venerable, and with a great reputation. So, as soon as we got back from our family trip I gave Charlie a call. He agreed to see me the next day, which kind of surprised me because here I was, a nobody, and this guy, who happened to also be a board member of Prime Computer, agreed to spend time with me. Cool!
They had an expensive office in downtown Boston — in one of those high rent skyscrapers that housed only elite companies. Over the next year or so I would get to know downtown Boston really well, with many visits to our lawyer, accounts, potential investors, and even early customers such as Fidelity. Downtown Boston is a really cool place. Except in the winter, when walking around the city can be downright nasty.
Charlie was a very friendly -- a genuine nice guy. I gave him my pitch. He seemed intrigued. Being a member of Prime Computer’s board meant that Charlie understood the industry pretty well, knew about Tandem, and understood the importance of improving computer reliability as the world moved away from batch processing to online computing.
I told him my plan to do this in California. He said “Well, Bill, then you’ll need a west coast lead investor. You should go see Paul Wythes and Sutter Hill in Palo Alto. I'll set it up.” Cool!! I now have a west coast connection! This is what I really needed.
“Bill, if you pull this together, get a team, and get Sutter Hill or one of the others interested, we at Greylock might be interested. But, only "might". We are a later-stage venture company and only do one start-up per year. And we have our eye on another guy at Prime Computer that we know real well — if he ever gets is act together and leaves Prime we would probably back him, not you.” Ok. That’s ok. At least I have a Silicon Valley connection. This was an extremely valuable meeting, all thanks to my friend Carl Carman.
As Charlie walked me out the door we ran into a very pleasant older gentleman, wearing a rumpled suit with his bow tie slightly askew. “Dave, meet Bill Foster. He’s going to start a computer company in California.” The man was David Place, a senior partner at a venerable Boston law firm, Gaston Snow and Ely Bartlett. They represented Greylock along with a bunch of very important companies.
Think of your kindly grandfather, or aging history professor, or small town cobbler. That was David Place — that’s what he looked like. And even as a very powerful person he was as nice as could be. I learned later that David knew everybody of importance in Boston — EVERYBODY. And to get anything done in Boston or anywhere in Massachusetts for that matter it was all about who you knew — all about connections. Well, Dave had connections up the wazoo— he could get anyone he wanted into any important door in the Commonwealth. I learned later he was even good friends with George Bush, the senior, and later worked for him in his administration. This man was connected.
Dave shook my hand in that regal way it was done in Boston — it’s hard to describe, but a light handshake with his right hand and then the left coming over the top — a two handed shake. “Congratulations, Bill. What an exciting and brave thing to do.” Congratulations? These guys were talking like I had actually achieved something. Right now I couldn't rub two nickels together.
Then he went on. “Bill, you’re going to need a law firm to represent you. I would like to do it. I would like to represent and advise you right now, no charge. If you ever get your dough (he always referred to money as “dough”) then maybe you would be so kind as to hire us as your official law firm.” This was crazy — I had only known him for about 2 minutes and he was already offering his services!! For free!! It didn’t matter that I was going to California — they had people out there. I accepted his generous offer immediately — what else? Do you think I’m crazy?!!
So, this little meeting at Greylock turned out to be tremendously important. Links to a venture capitalist in The Valley, a law firm free of charge, and a possible investor from Boston. I was one happy camper as I walked out the door. Things were starting to happen!!
The next step was to finish the business plan. I showed what I had done to David Place. I had written the plan as if Decade already existed, and not a pipe dream. His legalese mind thought I needed a disclaimer that specifically mentioned this company didn’t yet exist. So, that was Gaston Snow’s initial contribution: this boilerplate that was stuck on the front cover of every Decade business plan — four generations worth: “This memorandum contains proprietary information ….."
Ok, how do I print it up? Well, thanks to a west coast friend more free help was on the way. An old childhood friend of Marian's was now a big wig in San Jose for one of the so called “big eight” accounting firms — Arthur Young. Ron Piziali told me to look up his counterpart at their Boston office to see if he could help. Again, another trip into Boston — I was getting to know the downtown area better all the time. I met with George Southwick, one of the nicest people ever. Very smart, very friendly. “Ron tells me you're a good guy, Bill. So that’s all I need. I’ll offer my services to review the financial part of your plan, and when you’re ready we will print it in our production department.”
More free, generous help. Amazing! George helped me produce the five year financial plan for Decade — “pro forma” is the term. This forced me to come up with a revenue goal. I had no clue how fast this thing could grow. It had to be big enough to get the VC’s interested, but not too big to look crazy. Both Prime and Tandem were public companies and all their data was available. I simply averaged the performance of those two, making adjustments here and there, and came up with a financial plan: Small revenue starting at the end of Year Two, growing quickly to $80 million by the end of the fifth year. A total swag — not based on any solid data. But the funny thing is once Stratus got off the ground we were all driven to make that $80 million goal, and we basically did it!! We achieved a number that had no basis of fact other than a wild-eyed guess concocted by looking at what Prime and Tandem had done.
Big accounting firms like Arthur Young produced a lot of reports. This is before the internet, before PDF files, before email. A lot of paper was used back in those days. When my plan was finally done George’s department produced 30 beautiful documents, perfectly typeset and bound in the most professional way. And it didn’t cost me a cent. I gave George the first copy!
Like Dave Place before him, all George asked in return was that Arthur Young become our accounting firm when and if we get off the ground. And, of course, they did. One of my early investors tried to get me to switch to their big rival Arthur Anderson, but no way — after all that George had done I would never leave him or his company. Tragically, about 10 years later George contracted ALS and died from that absolutely terrible disease. Gary Haroian, John Curtis and I visited George just weeks before he passed on and he was still fighting, he was still optimistic. He would not give up. What a brave man George was!!
Next step — off to California. The Valley. Frisco. (As a native of the area I love calling it "Frisco" because it annoys the natives so much.)
Being on a budget, I stayed with my mom in Palo Alto. She was glad to see me — it really hurt her when we all moved east in 1976. With a PhD from Berkeley, mom had taught at various colleges during the previous 20 years, most recently at Foothills College in nearby Los Altos Hills. But she had been forcibly retired because of California’s mandatory retirement age, and now didn’t have much to keep her busy. She had sued the state over their policy but got nowhere. She had named the College’s administrator on her suit: Pitts Johnson, who ironically was also a member of Tandem’s board. My path and Pitt’s would cross later when he got upset over an advertisement that we ran about Stratus’ advantages over Tandem.
My first stop was Sutter Hill and Paul Wythes. He was great — supportive, interested, but noncommittal. What was I expecting — that he would pile cash on me the minute I walked in the door? I told Paul I would begin looking for a team — digging up old friends from my HP days. He said he would like to be involved in the interview process. That kind of bothered me — this was my deal, why should I need approval from him? But he also controlled the dough, so that was that. He offered me an office to work out of at their place — but I turned him down. That was more control over me than I wanted.
Paul helped big time in another way. There was an exciting investment banking company in San Francisco called Hambrecht and Quist. They seemed to have their fingers involved in all the good techie deals in The Valley. Wythes connected me with Bill Hambrecht. Bill invited me to lunch in “Frisco” with one of his young stars, Tom Volpe. I gave him the pitch — he was as nice as could be. H & Q was not only a VC firm but they also were an underwriter for new public offerings. Alas, he was not ready to throw any money my way — it was way too early for them. But this connection really paid off down the road. They eventually did invest in Stratus and also helped to underwrite our public offering in 1983. On top of this, Bill Hambrecht and Tom Volpe were really nice, down to earth guys, in spite of all of their success.
Next I looked up an old friend from HP who I thought would be a great candidate to run Marketing and Sales: Bill Krause. Very smart, very direct, with great experience. Bill worked with me at HP and was one of their young stars in their marketing department. Bill seemed to be quite interested. I hooked him up with Paul Wythes for his look-see. Paul called me the next day.
“Bill, I had a great meeting with Krause. He seems like an excellent candidate. But there’s one thing you should know — Krause spent most of the meeting trying to convince me that he should be the president of your company, not you.”
Hmmm… I hadn't seen that coming. So much for Krause. Apparently I needed to be a little more selective in the future. But out of the blue another sales candidate popped up. Another guy named Bill A. — seems like there are a lot of Bill’s in this story. He ran sales on the west coast for a high-flying minicomputer company. Mr. A really wanted to be in on my deal. Great!! My first partner!
Early in my HP career I hired a really good computer science grad out of Berkeley: John Couch. One of the best geeks that I knew — and he wasn’t even that geekish. But really smart. John was still at HP and I looked him up. I told him I was going to start a computer company.
The first words out of his mouth were: “What’s your gimmick?”
That caught me off guard. Set me back on my heels. Gimmick? He’s calling my baby, my brilliant idea, a gimmick??? But soon I realize it was just John’s version of Packard’s “technical contribution.” Couch knew that for any new computer company to have a chance you had to bring something new to the table. And hopefully something really worthwhile -- something that people would buy.
I explained the idea — how I was going after Tandem but would use hardware voting rather than software check-pointing. He saw right away that this was a great approach. He felt it had a chance. He liked it. But he wouldn’t sign up.
“Bill, you’re just a couple of weeks late. I’ve decided to quit HP and join Apple. They’re going to let me head up a new project.”
Bummer. John would have been great — he was not only smart but he could have pulled in a lot of really good techies with him. Apple was just getting rolling in 1979. No one had any idea where these “home computers” were going. IBM hadn’t even entered the market yet — they hadn’t yet coined the term “personal computer.” But John felt (correctly) that the market for these little boxes was going to take off.
John eventually became head of an Apple project called "Lisa". A really cool, icon-based desktop computer, very powerful. But it turned out to be too expensive for the market at that time. Steve Jobs took many of the great new innovations that Couch and his team had come up with, and put them into his lower cost pet project, the Macintosh. Much of the success of the Mac had to do with John’s work.
While I was scraping around Silicon Valley looking for warm bodies (my standards were getting lower) I also started looking at the housing market. We were going to move ourselves back to the Bay Area. While DG paid for my move to Massachusetts three years earlier, now we would be footing the bill. But worse than that, it turns out the housing market had been soaring in the Bay Area. The house we sold in Saratoga in 1976 for around 100 grand was now going for a half a million!! And our starter house, the one we bought in San Jose in 1969 for $30k now cost about 200! Meanwhile our house in New England hadn’t appreciated much at all. It dawned on me that we not only couldn’t buy our old house back but we couldn’t even afford our starter house!!
And finding people was a real struggle. In 1979 startup fever was spreading throughout the Valley. People who were still at HP had plenty of opportunities to jump ship and join a new venture. I wasn’t offering anything really new and exciting.
Depression was setting in. Cash was running out. With my tail between my legs I headed back east.
Stay East, Young Man
The best thing that happened to me in 1979 was California’s crazy booming housing market. That’s what drove me to stay east — more than the fact that I was having trouble finding people. If we had been able to afford a house in The Valley I would have moved my family back there, and then I would have failed.
1980 was a perfect time to start a company in New England. There hadn’t been a tech startup since Prime Computer in 1974. Engineers saw what was happening in the Bay Area and many were chomping at the bit to try their hand at a new venture.
Also, there’s no way I could have attracted the same quality of people that I got in Massachusetts. It started with Bob Freiburghouse’s eagerness to join me. He made the venture real. But equally important, Bob dragged in a bunch of amazing programmers — probably unparalleled in computing.
Data General began harassing me once they learned I was remaining in there territory. But that harassment lead me to Gardner Hendrie, the third member of our troika. Gardner bought some fantastic engineers that did things with hardware no one had ever done before. And he provided the critical link to our initial financing. Thanks, California, for being such an expensive place to live!
We had to develop an operating system from scratch. The OS is the riskiest and most complex part of a computing system. Tandem punted on this by stealing HP’s code. Bob and I considered briefly using Unix, but back then it simply would not cut the mustard as a commercial operating system. We had to develop it from scratch, and only Bob had the contacts with engineers that could do that. I didn’t know anyone from HP with the talent that Bob brought into our company.
But it took me a while to figure all of this out. Initially it felt like a disaster to stay east, to reset my plans. For one thing, venture capitalists don’t like change in the middle of trying to get a company going. Change means indecision, uncertainty, and indecisiveness. Does this guy know what he’s doing? That was a huge risk — abandoning the west and staying east.
I knew this would be a big setback. But I had no choice. Moving back to California was not an option. The first thing I did after punting on The Valley was to publish Version 2 of my plan. No big changes — minor tweaks. Still going down the losing path of hooking three DEC Vax-like computers together. For some reason I was still more focused on raising money than finding partners. So I started bouncing around Boston, following up on a bunch of dead-end leads, looking for dough.
One afternoon on my way home I had still had one plan left from the latest batch. On a whim I drove to Bob Freiburghouse’s office in Cambridge. My plan was to work out a deal for his compilers — hoping to get them now and pay him later. I went over the plan with Bob, drew him some simple pictures of the voting architecture. Being a software guy Bob saw right away the advantages of this approach over Tandem.
Later that evening Bob called me at home. He didn’t mix words. “Bill, I like your plan. It looks like much more opportunity than developing compliers. How would you like me as your partner?”
Holy smokes!!! This was totally out of the blue — something I never expected. Bob owned his own very successful small software company. It was very small but very successful. Just Bob and a helper. I never dreamed he would consider giving that up. In addition, he was going to give me office space. And we could use his Prime computer for development work. Unbelievable!! More than I could ever have expected. My venture finally began to look like it could become real.
Of course I accepted — are you kidding?? Right away Bob asked about a hardware guy. He knew software inside and out, but wasn’t any more of a hardware guy than I was. The plan depended on running computers in lock-step. Was that even possible? I told Bob I was working on a hardware guy and I hoped before long to have someone that he could talk to.
In fact, I had been given a lead recently. A young engineer at DG, no less, Dave B. I knew Dave and I thought he was pretty sharp. Dave had recently made the decision to leave DG and join Wang, so I figured he was fair game. Since he’s going to leave DG anyway why would they sue me?
I showed Dave the plan, went over the architecture, he liked it. “Sure we can run CPU’s in lock-step. We just hook them up to the same system clock. No problem.” This was great — the first confirmation from a hardware guy that lock-step was even possible.
Dave lived in Ashland, one town over from me, and we met several more times, going over plans and schedules. By this time Motorola had made good progress on their 68000 processor chip and I decided to use that instruction set rather than the Vax. That way when the 68000 did become available we could just drop it in with no changes to the software. I came out with Version 3 of the plan with this change to it, and dropped by a copy at Dave’s house.
I never heard from him again. Total, deafening silence from Ashland. No phone calls returned, nothing. Then the business plan showed up in my mail — Dave had mailed it back!!! Pretty sure sign he had decided not to be part of the deal. I heard later than he had been turned around by DG and decided to stay there. But he never had the courage to face me and drop out directly.
Shortly after this I got the infamous phone call from Carl Kaplan telling me DG was going to sue. Maybe the events were connected… maybe they heard I had been talking to Dave. I never determined this to be true. But, as I described in the DG chapter, the gloves were now off. I desperately needed a hardware guy. I had to keep Bob’s interest up.
Co-founder of Apollo?
Out of the blue Charlie Waite of Greylock Ventures called. “Bill, I hear you’ve decided to stay east, and you’re having trouble raising money.” Seemed like everyone in the world knew I was floundering. “ We’re going to invest in Bill Poduska. He’s leaving Prime and is going to start some type of a computer company. Why don’t you meet with Bill — maybe the two of you could work together.”
Hmmm. Not what I really wanted — potentially to be second banana in someone else’s company. But he had money, or at least was well on his way to getting it. I had nothing — just a rapidly dwindling savings account. One software partner, no one for hardware. No good venture capital leads. I wasn’t holding any cards. Sounds like I should at least meet with Poduska.
We spoke on the phone, and he was the nicest guy ever. Most people in the New England had heard of Bill. One of the founders of Prime, the hottest local computer company to come along since Data General. A minicomputer with 32 bits. Alone in the industry with that really important and forward looking feature. All computers would eventually have at least 32 bits — they needed it as memory got cheaper and software got bigger. You just could just barely design decent software with a 16-bit computer. But Prime was the first mini to have it, and they were doing well.
Bill suggested that we have a dinner with our wives. I didn’t tell my partner Bob Freiburghouse that I was going to meet with him — I felt like a traitor.
It was a great dinner and Bill was simply delightful. Funny, erudite, charming. Our wives hit it off as well. Looked promising. Except….
Bill had no real plan. I felt that I was much further along in the process of putting together a business than he was. He had a general idea of producing some kind of a “workstation” product, put nothing specific. It really bugged me that he was most certainly going to get his money, based mostly on his reputation at Prime. And here I was, with (what I thought) a really cool, detailed business plan, going after a very focused and defined market, and I was going nowhere.
What do I do? Join forces with Bill? Give up my dream? Be number two not number one? To be accurate, Bill hadn’t even offered me a position yet, but we ended our dinner on such good terms and the entire evening had gone so well I figured one was coming. I could have been delusional, once again.
Or do I continue down my path? A pretty short path right now. Maybe a path leading to a cliff. Like the lemmings. If I don’t go with Poduska will this be the second time that I really blew a great opportunity? I screwed up with Tandem. Could my ego stand screwing up once again?
Enter Maid Marian. My wonderful wife. My partner. My rock. It was totally clear to her what to do. “Stick to your plan. You have a great idea. You want to be the CEO, not second banana. Stick with it. Don’t give up. If it doesn’t work out it won’t be the end of the world.” Total continued support, even as I drained our life savings. Amazing!!
So, that was it. I got some well-needed confidence from my wife to continue down my path. Bill and I parted friendly, and he went off to start Apollo Computer, a very successful workstation company, and one of the first to use the Motorola 68000 chip. It was odd that even with all of his promoting of Poduska, Charlie Waite and Greylock didn't invest in round 1 of Apollo. But I do believe they came in during a later round. Apollo was eventually acquired by Hewlett Packard and the investors all made a lot of money.
So here I was. Pretty much stuck in the mud. No interest from the venture capitalists, no hardware guy, my old employer threatening to sue me. On that last point, DG's bullying style really freed me up. What me worry? They're going to sue no matter what.
I picked up the phone and called one of Data General's superstars, Gardner Hendrie.
Finally a team!!!
Gardner and I only crossed paths a few times during my three years at DG. He was a hardware guy and I was in software, and never the twain shall meet. Plus, his office was about a mile from mine in that huge building in Westboro. I knew him mostly by reputation and I knew he was one of the best.
“I’m a conservative guy.” Those were the first words out of Gardner’s mouth. He knew I had left DG and had heard something about a new computer company, but that was it. He wasn’t going to give up his career for an idea that had no teeth. But at least I was able to convince him to meet.
I went through my pitch — go after Tandem, use voting hardware to keep the software job simple, 32-bit machine, etc. I gave him a precious copy of my business plan— Version 3. The big change with this version was now I was going to build a machine that looked like Motorola’s 68000 processor chip — an exact copy of their instruction set. That way when and if Motorola came out with the 68000 we could just drop it in, with no software changes — a tremendous cost saver. The plan was finally becoming more realistic.
Gardner said “The hardware can be done. The hard part will be the software. Who's doing that?”
It’s interesting that Bob Freiburghouse, my software guy, thought the hardware would be the toughest part, and Gardner thought it would be the software. Each was very confident in his part, and wanted to know how the other half would be done.
Gardner had heard of Bob and his software company, but didn’t know him. I arranged a dinner between them — I left myself out. Since each depended so much on the other I figured I would stay out of the equation. The dinner was a big success. Each left with enormous respect for the other. Finally, I had a team! As 1979 came to a close things were finally looking up!
Well, not quite. Gardner wasn’t ready to leave Data General — not without doing a little checking. Unbeknownst to me Gardner met with his old friend Burgess Jameson. Gardner and Burge had worked together years early as engineers at a small company — I heard later they were working on one of the first 16-bit computers. Now Burge was in venture capital — he was a partner of Institutional Venture Associates. IVA was based at that famous Sand Hill Road address in Menlo Park, California — home to many Bay Area VC companies. In fact, they were right next door to Kleiner Perkins — the company I visited a few years earlier, the guys who funded Tandem.
Gardner wanted to find out from Burge if this was even possible — could money be raised in 1980 to start another computer company. He gave Burge the pitch, and he apparently got interested right away. Gardner told me later that Burge said “this looks good. But don’t do anything before I give it more thought.”
At this point Bob and I had several irons in the fire as possible sources of money. We weren’t getting anywhere with the VC guys, but there was some interest from a group of wealthy individuals in Philadelphia, and there was even technology company that wanted to invest in us. All of these choices are described in the Harvard Case on Stratus, that was written a couple years after we got started. Harvard thought it was good for their students to study the three possible sources of capital: wealthy individuals, corporate funding, or venture capital. That’s why they did the case.
During the beginning of 1980 Bob, Gardner, and I pursued all three of these possibilities. I had run across a guy who had just sold his software company for a few million bucks and felt he could put a syndicate together. I gave him a bunch of business plans and the three of us even made a trip to Philadelphia to meet with them. It was a one-way street — we kept giving them plans but nothing ever came back. We weren’t getting anywhere.
Meanwhile I was contacted by a company that wanted to do the whole thing themselves — they would invest up to $6 million, or so they said. We met with them, never liked any of them. All four of the guys from this company smoked like fish — we couldn’t stand it. And we didn’t want to be owned by them. This was to be an independent company.
By the end of January we finally published a version of the plan that in hindsight would actually work!! Motorola was making good progress on the 68000, so in Version 4 we said our product would use that chip. No “T-squared L” version hand made with jelly bean chips — we would design as if the Motorola 68000 was truly going to exist.. This created a tremendous cost savings. We could buy one 68000 processor for $400 but it would have taken a couple of thousand bucks to produce the same thing with TTL logic. But this had the risk of depending totally on Motorola. If for some reason they failed we were sunk. No backup plan. The cost savings were so great and the size of the market expanded by so much it was worth the risk.
Gardner and Mr. A, the west coast sales guy, were still working at their companies. So Version 4 of the plan didn’t name them, it just described their backgrounds. But the plan did at least have a team: me as CEO, Bob to run software, an two unidentified people, one for hardware and one for sales. So now the focus was totally on raising money, not finding people.
Our sales pitch consisted of handing over the business plan and then describing how the computer worked —how we differed from Tandem. The concept of voting hardware was so simple and easily copied we were paranoid that if there was a diagram that showed voting someone would steal the concept and do their own Stratus (actually, the company was still called “Decade”). Many of the VC partners and other potential investors knew nothing about computers but it only took a few simple diagrams or drawings to clue them in. It didn't take much effort for almost anyone to get it.
First, we would explain that computers are very dumb. They really can’t do much. A computer can basically do only three things: add numbers, compare them, and jump around to different places in the program. Along with some other commands these simple operations can achieve everything. Simple example: to subtract one number from another simply flip the sign bit and add.
On top of this simplicity, the numbers that computers work with are hardly recognizable to humans. Computers only deal with one’s and zeros!! Binary!!! That’s it. They don’t understand 2, or 3, etc. A number like “3” first needs to be converted into it’s binary equivalent (“11”) in order for a computer to recognize it. Computers are really, really dumb.
Ok, if computers are so dumb then how can they do all this stuff? Video games. Payroll. Facebook. Send men to the moon. Etc, etc, etc….. (Well, actually, sending men to the moon was mostly figured out with slide rules and erasers — computers were very crude in the 50’s and 60’s.)
A couple of things. One: computers are very fast and constantly getting faster. They can do this dumb stuff at lightning speeds.
And two: computers have really good memories. They never forget. You can rely on that — if you tell a computer something, for all practical purposes it never forgets.
And finally, the thing that a makes these hunks of sand and metal useful is…. SOFTWARE!!! There is only one purpose for software: to take problems that we understand in human terms and translate them into a bunch of commands that computers can work on with their very simple but incredibly fast brains — by manipulating billions of ones and zeros.
Think about it! This is a very difficult job. A very complex job. All the things we do with computers or smart phones or tablets or even driving our cars, etc. —all those human things need to be morphed into a whole bunch of commands that are ultimately made up of binary numbers and operated on in very tiny steps. This is much more complex than, say, translating from Swahili to English. Not even close. This is the job of software — to translate between humans and machines. Gobs and gobs of software are needed to do this. Layer upon layer. As computers get more powerful they can tolerate more software. That’s why computers do so much more today than in the past — their incredible speeds and larger memories let them run much more software — increasingly complex apps.
Today’s programmers are for the most part totally removed from the hardware. They write programs in some form of language such as Java or C++ which protects them from the nuts and bolts of the machine. But back in the day, before computers had the power to handle all of these software layers, programmers had to get down and dirty with the machine. You really had to understand how the hardware worked in order to write a program. The first computer I used, the IBM 1620, required me to write a machine language program just to kick start the thing into action. Today’s programmers have totally lost sight of what is really going on deep down in the bowels of the computer — there’s no reason to get bogged down in that detail.
Along came the internet in the 90’s and now the entire world has become one giant multi-processing computing system. Millions and millions of processors tied together. Rather than just being connected by traces of metal on a circuit board, this system is bound with cable, fiber, WIFI, cell tower signals, etc. The internet is really just a form of glue which ties most of the world’s computers together into one enormous system.
Ok, so now that you have gone through Computer 101, think about this: Because computers are so simple but fast and with good memories, they are very predictable. Line up two computers side by side — identical computers down to the last transistor, the last jelly bean. No cheating — these computers must be absolutely, totally identical. In every respect.
Then, somehow give each of them the same job. The identical problem, such as “add two plus three.” If at the same instant in time you tell these two identical computers to add 2 plus 3 they will, AT EXACTLY THE SAME TIME, come up with the identical answer: 5!!! In other words, computers don’t do things randomly. They have no free will. (At least we hope they don’t. When they do we’re all screwed.)
Let me repeat: if you give two identical computers the same problem at exactly the same time, they will come up with the same answer. At exactly the same time — unless there is a failure!! That’s why we need fault-tolerance — failures do happen. That’s what put Tandem in business, and later Stratus.
What if the computer has a failure where it thinks 2 plus three is six? And what if it’s twin says the answer is 5 — who do you believe? That’s where voting comes in — we had a THIRD computer to work on the same problem and odds are it would say the answer is five as well. One says 6 the other two say 5. Majority rules — five wins. This is the essence of a voting system, and it was first described back in the early 60’s. The only problem was back then hardware was WAY too expensive to have three machines doing the work of one. But in 1980, particularly with the creation of low cost microprocessors, it was now possible. At least, this is what we tried to convince potential investors -- we would do "it" with voting hardware, while Tandem used a complex software method.
One morning in early February, 1980, I received a fateful phone call. “Bill, my name is Joe Gal. I got a copy of your business plan from Burgess Jamieson at IVA. It looks interesting. We should talk.”
Joe was a principal in the Boston VC firm Hellman Gal. I knew of them — I had gotten their name out of a book on VC firms. But I had never called on them — I thought they were too small to be interested in a venture that would take several million dollars to get off the ground. The three of us — Bob, Gardner, and me — went to his fancy office in downtown Boston and gave our pitch. He asked a few questions, and a week or so later called back with a few more. Joe was a little concerned about the expense of three processors doing the work of one — how big could that market be? We convinced him that since we were going to use these new, very powerful microprocessor chips we had a huge cost advantage over Tandem.
In early March the magic moment happened. Joe called. “Bill, we’re going to invest. IVA in California is going to come along with us, and we will find a third firm to round things out, spread the risk.” Amazing!! Fantastic!! Jubilance!! Every superlative you can think of!! Much of this was due to Gardner and his connection with Burge Jameison. Gardner was a real two-fur. Not only did we get an amazing hardware guy, but he gave us the connection to our dough! If Data General only knew how badly they had screwed up by forcing me to go after Gardner….
I immediately called Bob, Gardner, and Mr. A, who still lived in California. All were elated — Gardner said he would resign from Data General immediately and spend full time on our deal. I took my family out to dinner for the first time in over a year — I think we went to Friendly’s — a big deal for us.
The next day I went to see Joe Gal. My attorney David Place wanted to go with me — not really sure why but I let him tag along. Joe got right to the point:
“Bill, tell me what kind of deal you're looking for. Your plan said you need 6 million bucks. You're not going to get that much at the start, so what do you want? And what’s the split going to be?”
I knew from studying other deals that for someone like me, a nobody really — no prior experience in starting a company — that the best we could hope for was around $2 million, and to give up half the company.
“Joe, I was thinking 4 million and a 60-40 split. We get 60% and the investors get the rest.”
Joe gave me a wry smile — he knew I was bluffing. “I was thinking 60-40, but the other way around. We get 60%. And no way you're getting 4 million. Let’s see what you can do with two, and after a year if things go well you can raise some more.”
We went back and forth for a while. David Place chimed in now and then but wasn’t much help. I told Joe we needed stock for our first 30 people — 40% wasn't enough for them and us. We eventually settled on roughly 55-45. The 45 included stock for the four founders and our initial hires. We would get $1.6 million from three VC firms. I was happy.
Bob, Gardner, and I had never talked about stock, or compensation of any kind. To show how trusting Bob and Gardner were, they just assumed that if we pulled off this deal we would all do ok. It shows that none of us were in this for money — we were doing it for the love and excitement of building a computer company from scratch. Maybe if what we really wanted was a lot of money we could have negotiated a better deal. But I don’t believe many entrepreneurs start companies to get rich, and I don’t think if that is the motivation there is much history of success.
That evening the three of us hammered out the stock at my kitchen table. We agree that I would get 20% of the founders stock, with Bob, Gardner, and Mr. A getting 17%. That left 29% for our initial 20 or so employees. (If you’re wonder why I refer to him as “Mr. A” you’re about to find out….)
Now, the next part is kind of funny. We decided on 2.2 million total shares — for the investors, founders, and employees. That meant my part was to be 200,000 shares. (We later split four for one before going public in 1983, so this became 800,000). We employees would have common stock, the investors got preferred. Basically, what that meant is if the thing went belly up the investors could sell any assets and take the proceeds — a standard way to go. The investors would pay $1.33 per share for each of their 1.2 million shares. But what would we pay?
Well, it turned out I had just a little more than $10,000 left in the bank. That meant I could only afford a nickel for each of my 200,000 shares. So, that set the price of common stock — for me and all of our early employees. Five cents a share! If I had had $20,000 remaining the price would have been 10 cents. In other words, lucky for everyone I was almost dead broke and therefore their founders stock was dirt cheap. It’s amazing how arbitrary the process was.
There was one part of the deal that I didn’t like at all. This is where I could have used Donald Trump to help me negotiate. The investors wanted our stock to “vest” over five years — 20% per year. That meant if one of us left early we would not get all of our stock. I had several paranoid moments over the next few years, mostly when things were going poorly. I thought, “Holy crap. This whole thing was my idea. And they could boot me out at any time and take my stock.” It turns out I didn’t really have to worry. Hellman Gal and IVA, along with our third investor General Electric, were all upstanding firms, and they never would have thrown me out capriciously. But I did have my moments of worry, and probably could have done a better job of negotiating on this point.
The Big Lady is Silent
Now, this gets to the part where “It ain’t over ‘till its over”. Or, you haven't achieved anything ‘till the money's in the bank drawing interest. The next day, the day after we had a handshake deal, I got a call from Mr. A. I was about to tell him how much stock he was getting but before I got any words out he blurted:
“Bill, I can’t be a part of the deal. I’ve got…. THE BIG C….”
The Big C!! My brain shifted into high gear. What is C? Clap? Or is that spelled with a K? Colitis? Whooping Cough? Wait a minute — could C be Cancer? Mr. A’s got Cancer???!!!! It must be that C.
I was devastated. In my then young life I had known few people who had cancer. That was something old people got — not those of us in our prime. Poor Mr. A.
I have to admit I was also devastated for me. And Bob. And Gardner. Our deal wasn’t yet 2 days old and we already lost 25% of our team. And a critical part — the only one of the four of us that really new how to sell stuff.
I told Mr. A how sorry I was. Of course I understood he could’t be part of the deal. I hoped all would turn out ok, etc, etc. And that was it. We never spoke again. Nearly forty years have gone by and I’ve never seen him, never heard from him. I do, however, know a bunch of people who know Mr. A. The funny thing is, no one ever mentioned that he was sick — that he ever had cancer or anything else. Now, I don’t know for sure. Maybe the cancer wasn’t that bad. Or the treatment was quick and successful, and that he made a full recovery. All I know for sure is this: as I looked back on my odyssey over the previous several months, once I bailed on California and decided to stay east, Mr. A became less involved. He cooled off. I didn’t notice it much at the time because I was focused on other things. But after his call it occurred to me “maybe Mr. A was hoping my deal would fail, and he wouldn't have to tell me he would never relocate to Massachusetts. I just don’t know….
I was totally bummed. I immediately picked up the phone and called Joe Gal — even before I told Bob and Gardner. Money was the first priority — we would be nowhere if Joe backed out.
The call did not turn out as expected. Joe said, “Bill, to be honest, we never liked Mr. A. We thought he was a weak link. We never thought he would survive the deal. It’s going to take a couple of years to design your computer — you have plenty of time to go out and find someone really good.”
Wow!! What a turn of events! In the span of about an hour I had gone from nirvana to misery to joy. I was still a little dizzy when I called Bob, and then Gardner. Turns out they didn’t like Mr. A much either. They agreed that we would set aside his founders stock, get the thing off the ground, and then go out and find a sales wizard.
Joe Gal asked me to come into his office the next day, to talk about the timing of finding a sales guy. One of his lawyers was in his office. This guy said, "Since it's a riskier deal now with one of the founders gone, we should change the deal. Foster and his team should get less of the company to cover our increased risk." That sort of bummed me out. But Joe, to his credit, wasn't going for this. "We're not changing the terms. The stock for Mr. A will be set aside for the real sales guy." That was great move on Joe's part. He was a lot nicer to me than I was to him a couple of years later when our relationship hit a bump in the road....
Pair and Spare
The first year of Stratus’ life was a lot of fun with not too much stress. After all, this was now an R&D project, and I had been involved with them for many years. Bob and Gardner had a fantastic set of engineers lined up, and they came on board pretty quickly. In fact, a few of Bob’s guys joined us before our money was in the bank — Bob did a good job of convincing them that it was a done deal. (I didn’t believe it was done until the money was in the bank generating interest.) By the summer of 1980 there were 23 of us all total. Other than the occasional threat from my old employer DG, everything was calm.
The three of us found a cool ten thousand square foot building in a little industrial park in Natick. On Strathmore road — the original home of Prime Computer — a very good omen. This was an easy drive from my house in Sherborn — about 5 miles or so. I could even go home for lunch now and then! So, at the end of May we all moved out of Bob’s office in Cambridge. I see that office whenever I drive into Boston, and it brings back fond memories. Bob was totally generous in providing it as the starting point for Stratus.
One funny story about Cambridge: One morning when I walked into the tiny elevator there was a man facing me who looked just like John Chancellor, the top NBC news honcho at the time. I said to Bob, “you won’t believe it. There was a guy in the elevator that was the spitting image of John Chancellor!” He told me to calm down — that it most certainly was this famous newscaster. The New Hampshire presidential primary was happening and NBC chose the floor above us as their headquarters. (That was the famous primary where Reagan shouted “I PAID FOR THIS MICROPHONE MR. BREEN” when GHW Bush was being refused entry into the debate.)
So Bob had software, Gardner had hardware, and I had pretty much nothing. I was actually kind of bored now and then. At one point I dug out my old programming skills and wrote a simulator for our development computer that we purchased from Prime — to make it behave like a Motorola 68000. This allowed our programmers to start debugging their software well before the hardware was ready. Eventually I turned the simulator over to one of our great guys, Richard Barnes. It became his baby in terms of changes, improvements, etc. Remember, programmers don’t really like others to look at their code, but I was curious about what Richard thought. Being as diplomatic as he could, Richard hemmed and hawed and finally said “well, Bill, it seems that structured programming passed you by….” Cracked me up.
Except for the operating system, which we called VOS (Virtual Operating System), all of the other projects were pretty much one man each. One for the communications board, one for COBOL, one for memory, etc. VOS had three people — an amazing trio that Bob stole from the Multics project, lead by Steve Webber, along with Mike Grady and Larry Johnson. These guys had worked together for so long it didn’t look to me like they even had to talk to each other. Just give them a warm liter of Pepsi and a terminal, and through some weird kind of programming esp they divided up the work and pounded out the code.
On the hardware side the one thing that was missing was someone to do the CPU board and voter. Even though we were designing around the Motorola 68000 processor chip there was still a lot of hardware needed to go with it.
Remember the voter? The idea that three computers worked simultaneously on the same problem and vote at each step of the way. If there was ever a disagreement, majority rules. Pretty simple, right? Except for one small thing. What if the voter fails? Or screws up? The fundamental principle of a fault tolerant computer is that no single failure can bring the thing down. Well, we had three cpu’s so no problem there. Two memories, comm boards, two disks, etc. But only one voter. Hmmm. A miracle was needed. It’s kind of amazing that in all of our presentations to potential investors and employees no one identified the voter as a weak link.
There actually was a design for an FT voter that was published in the IEEE a couple of decades earlier, but it was hopelessly complex. And expensive. Not an option.
I have to admit here that this points to one advantage of Tandem, with their “software” approach to FT. Checkpointing. Computers talking to each other, backing each other up. Very software intensive, slow, expensive. But, if computer failed because of a software crash Tandem could in theory recover. In a hardware FT scenario like ours a software crash brings all three computers down. You're sunk. Again, surprisingly this was never brought up by prospective customers, and Tandem never used it against us. They could have run a pretty powerful ad. “Tandem protects against hardware AND software faults. Stratus only protects against hardware.” But upper management at Tandem pretty much ignored us. They didn’t want to admit that anyone could compete with them, particularly an upstart. Particularly one run by Bill Foster, who almost became a founder of Tandem back in ‘74. If I had run Tandem instead of Jimmy Treybig I would have killed Stratus before it got off the ground by highlighting the inability to recover from a software crash. (I also would have drastically undercut Stratus on price. I would have made Stratus’ life miserable and probably would have preventing the company from getting off the ground. Luckily Tandem was too proud to take us seriously.)
Of course, the case we made on the advantages of hardware vs. software FT were many. The biggest is there is NO complex software needed to make the app fault tolerant. Also, nothing to do in the operating system. Tandem's checkpointing approach is tremendously complex, both for Guardian (their OS) and the users's application. The more complex software is, the more it is subject to errors. We had none of it. Plus, when a Tandem processor fails the entire system slows down because all of the work is now being picked up on fewer processors. With Stratus, when there is a failure the thing just keeps on sailing along -- no performance loss, no data loss, no inkling by the user that something happened. And of course, there is repair on the fly -- a very key part of our design. We highlighted these advantages in our first ad, "STRATUS vs. TANDEM". It must have stung because they sued us over it. I will get in to that later.
Anyway, we needed someone to do the CPU and voter. Enter a laid back Aussie, Robert Reid. I don’t remember how Gardner found him — it may have been through an ad or headhunter. But no one at Stratus knew Bob Reid — he would be the first key employee where none of us had direct experience working with him. Somewhat risky, particularly for the CPU, the heart of the machine.
I didn’t hear this story until years later, but here’s pretty much how it went. (I recently talked to Gardner and he confirmed that what follows is pretty accurate.) Gardner described to Bob Reid during the interview the basic architecture, the CPU, the Motorola 68000, the voter, etc. At some point Bob blurted out, “Say mate. That voter is going to be hard to do. What if it fails? How do I make if fault tolerant? Why not, instead of three processors and a voter, we go with FOUR processors, a pair and a spare? Each pair constantly compares, and if there’s ever a disagreement then just shut the entire pair down. Meanwhile the other two CPU’s keep going. No complex voter, no single point of failure.”
Amazing!!! A breakthrough!! A fundamental change to our design!! And it was proposed by a fellow who didn’t even work for us yet!!! Four is such a nicer number than three!! It made maintenance so simple. Put the two CPU’s and a checker (plus a whole bunch of additional jelly bean logic) on a single board. If the checker detects a disagreement, the entire board gets shut down. Pull it out on the fly (while the rest of the computer hums along) and replace it. Simple. Easy. Elegant. Use the same pair/spare scheme for all of the other boards in the system. (Of course, this begs the question of what if the checker fails? Oh well. Nobody’s perfect…..)
We were using (relatively) cheap 68000’s. What difference does it make if we use four instead of three? Especially since this method eliminated all that expensive voter logic. This was a brilliant observation by Bob — something he came up with more or less spontaneously, and it lead to the fundamental “pair and spare” architecture that Stratus has used ever since — even now, 36 years later!! My idea — the thing that motivated me to start Stratus, was to “do it in hardware.” Bob Reid’s idea was to do it with four processors, not three, and simple checking.
When I told Joe Gal, our lead investor, that a month into the project we had decide to go with four processors instead of three, he almost fell out of his chair. “Four. You’re now going to have FOUR CPU’s doing the work of one!! Do you guys really know what your doing?” Turns out, we didn’t really know what we were doing until Robert Reid showed us the light. I don’t remember how I thought the idea for Pair and Spare was developed. I wish I had known it was Bob. He never got the credit that he deserved for this simple and elegant solution to hardware fault tolerance.