Vendor lineage
Digital Equipment Corporation - the minicomputer king
Ken Olsen's PDP and VAX machines defined two decades of computing; DEC co-authored Ethernet and ended inside Compaq in 1998.
DEC took computing out of the glass house: the PDP-8 made computers departmental, the PDP-11 made them ubiquitous, and VAX/VMS made them an architecture empire. DEC also co-signed the DIX Ethernet standard with Intel and Xerox - the reason this industry cables the way it does.
The profile traces Maynard's woolen mill to the $9.6 billion Compaq acquisition - then the largest in computer history - and the VMS-to-Windows-NT bloodline that followed the people out.
Founding stories
Digital Equipment Corporation
Ken Olsen and Harlan Anderson took $70,000 from Georges Doriot's American Research and Development - one of venture capital's founding investments - and set up in a Civil War era woolen mill to build computers people could actually touch. The PDP line took computing out of the mainframe glass house: the PDP-8 put a computer in the department, the PDP-11 put one in the lab, the factory, and the phone switch, and VAX/VMS built an empire on compatibility. DEC at its peak was the world's second-largest computer company, and the New England anchor of an entire industry.
The timeline
- The mill in Maynard
Founded on ARD venture money in a woolen mill - modules first, then the PDP-1, on which a certain MIT hack named Spacewar! becomes one of the first video games.
- PDP-8: the minicomputer
The first mass-produced minicomputer at $18,000 creates a category: computing a department can buy without asking the board.
- PDP-11
Arguably the most influential computer architecture ever shipped - the machine Unix and C grew up on, embedded everywhere from factories to telephone exchanges for decades.
- VAX/VMS
The 32-bit empire: one architecture from desktop to datacenter, clustered before clustering was a word, with DECnet wiring it together - the proprietary networking world Ethernet would both serve and unseat.
- The DIX standard
DEC co-authors the Ethernet specification with Intel and Xerox - the pragmatic act that made PARC's invention an industry standard and, eventually, the only wire that matters.
- Compaq, then HP
After the Alpha gamble and the AltaVista curiosity could not reverse the decline, Compaq completes the ~$9.6 billion acquisition in June 1998 - then the largest deal in computer history - and carries DEC into HP in 2002. Dave Cutler's VMS team had already carried its ideas to Microsoft as Windows NT.
Deal record; the VMS-to-NT lineage is extensively documented.
Flagship products and solutions
- PDP-8 and PDP-11The minicomputers that created departmental computing - and the native soil of Unix and C.
- VAX/VMSThe 32-bit architecture-and-OS empire, clustered and networked, that defined enterprise computing between the mainframe and the PC.
- AlphaThe 64-bit RISC swan song: for years the fastest processor on earth, a decade ahead of its market.
Key innovations
- The minicomputer categoryDEC invented computing at department scale - the step between IBM's glass house and the PC on every desk - and dominated it for twenty years.
- Ethernet's co-signatureThe DIX standard is why Ethernet won: DEC's enterprise weight behind PARC's idea turned a lab network into the world's cabling.
Main markets
DEC's markets dissolved into the PC and server world it declined to take seriously; its DNA persists in Windows NT's architecture, in Ethernet's ubiquity, and in the engineering diaspora of New England computing.
Analyst standing
- For two decades the counterweight to IBM in every evaluation that mattered - and afterward, the canonical study in a great engineering company missing a platform shift it had itself made possible.