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DecstationThe DECstation was a family of MIPS-based computers built by DEC beginning in 1989. They ran Ultrix, which was a variation of UNIX. The DECstation 2100/3100, released in 1989, was the first commercially available RISC-based machine. At the time DEC was mostly known for their CISC systems including the successful PDP and VAX lines. The DECstation 3100 was the world's fastest UNIX workstation at the time. The DECstation name was originally used for word processing systems based on the PDP-8. These systems, built into a VT-52 terminal, were also known as a VT-78. Models - DECstation 2100 (codenamed PMIN)
- 12.5 MHz R2000 CPU
- up to 24 MB RAM (in 2 MB pairs)
- DECstation 3100 (codenamed PMAX)
- 16.67 MHz R2000 CPU
- up to 24 MB RAM (in 2 MB pairs)
- Personal DECstation 5000/20, 5000/25, 5000/33 and 5000/50 (codenamed MAXine)
- 20, 25 or 33 MHz R3000 CPU (for the /20, /25, or /33 respectively)
- 50 MHz R4000 CPU for the /50
- 8 MB RAM built-in (expandable to up to 40 MB RAM (in 8 MB pairs))
- DECstation 5000/120, 5000/125, 5000/133 and 5000/150 (codenamed 3MIN)
- 20, 25 or 33 MHz R3000 CPU (for the /120, /125, or /133 respectively)
- 50 MHz R4000 CPU for the /150
- up to 128 MB RAM (in 8 MB pairs)
- DECstation 5000/200 (codenamed 3MAX)
- 25 MHz R3000 CPU
- up to 480 MB RAM (in 32 MB pairs)
- DECstation 5000/240 and 5000/260 (codenamed 3MAX+)
- 40 MHz R3000 CPU for the /240 and 60 MHz R4400 CPU for the /260
- up to 480 MB RAM (in 32 MB pairs)
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