Compaq Professional Workstation

The Compaq Professional Workstation was a family of workstations produced by Compaq. Introduced in late October 1996, the first entry in the family featured single or dual Pentium Pro processors. Later entries featured Pentium IIs and IIIs; the XP1000 was the only non-x86 based entry, featuring a DEC Alpha processor. Compaq aimed the Professional Workstation at computer-aided design users, software programmers, multimedia designers and financial workers. While workers of those fields primarily ran Unix-based operating systems on workstations at the time, the Compaq Professional Workstation came preinstalled with Windows NT 4.0 Workstation (later Windows 2000 Professional).^[1] The line was discontinued in 2002.

Compaq Professional Workstation

Developer	Compaq
Type	Workstation
Release date	November 1996 (1996-11)
Discontinued	2002 (2002)
CPU	Pentium Pro Pentium II Pentium II Xeon Pentium III Pentium III Xeon Alpha 21264

Models

Compaq Professional Workstations

Model	Processor(s)	Clock speed (MHz)	Max. RAM	L2 cache	Date introduced
5000	Pentium Pro (dual or single)	200	512 MB		November 1996[2][3]
5100	Pentium II (dual or single)	300	512 MB	512 KB	September 1997[4][5]
6000	Pentium II (dual or single)	266–300	256 MB	512 KB	June 1997[6][7][8]
8000	Pentium Pro (dual or quad)	200	3 GB	512 KB	June 1997[7][9]
AP200	Pentium II	350, 400, or 450	384 MB		July 1998[10][11]
AP400	Pentium II (dual)	350 or 400	1 GB		July 1998[10]
AP500	Pentium II (dual or single)	400 or 450	1 GB		August 1998[12][11]
SP700	Pentium II Xeon	400 or 450	4 GB		October 1998[10][11]
AP550	Pentium III (dual or single)	866	1 GB		November 1999[13][14]
1000 XP	Alpha 21264	500–667	512 MB	4 MB	2000[15][16][17]
SP750	Pentium III Xeon	800 or 866 or 1000	4 GB	256 KB	2001[13][18]