Digital AlphaServer A4100

 Home > Browse Our Collection > Computers > Digital DEC > Digital AlphaServer A4100

AlphaServer was the name given to a series of server computers, produced from 1994 onwards by Digital Equipment Corporation, and latterly by Compaq and HP. As the name suggests, the AlphaServers were based on the DEC Alpha 64-bit microprocessor. Supported operating systems for AlphaServers are Tru64 UNIX (formerly Digital UNIX), OpenVMS and Windows NT (on earlier systems, with AlphaBIOS ARC firmware), while enthusiasts have provided alternative operating systems such as Linux, NetBSD, OpenBSD and FreeBSD.

Digital claimed Unprecedented performance
and headroom powered by
DIGITAL 64-bit Alpha technology

Exceptional complex database
applications capacity and
performance using VLM64™
(Very Large Memory) support

Unmatched I/O scalability
and investment protection
with next-generation 64-bit PCI

Optimized flexibility and application
migration with a choice
of three operating systems:
DIGITAL UNIX®, Microsoft®
Windows NT™, or OpenVMS™

Innovative configuration
flexibility with system drawer
design and DIGITAL UltraSCSI

They had a clock speed upto to 600 MHz with a cache size via an on board chip of 8 KB I-cache, 8 KB D-cache, 96 KB secondary/ and 8 MB per processor. Maximum memory for 4000 4 GB 4 GB
for 4100 8 GB
Maximum disk capacity Pedestal: 380 GB/over 15 TB
(in-cabinet/total) Cabinet: 760 GB/over 15 TB
Maximum I/O bandwidth 500 MB/s (1 GB/s with I/O expansion)
I/O support (max. config.) for 4100 8 64-bit PCI slots (including 3 shared PCI/EISA slots), 2 64-bit PCI channels

Our unit is housed in a StorageWorks cabinet SW500-AD

Manufacturer: Digital
Date: 1998

Comment on This Page

Other Systems Related To Digital AlphaServer A4100:

Item Manufacturer Date
Digital PDP-11/20 Digital 1971
Digital PDP-11/04 BD Digital July 1976
Digital PDP-11/60 System Digital 1977
Digital PDP-11/34 Digital 1978
Digital PDP-11/35 System Digital 1978
Digital Systems DMS 3 Digital Microsystems 1982
Digital DECWriter Correspondent Digital 1982
Digital Professional 350-D Digital 1982
DEC Rainbow 100A Digital Equipment Corporation 1982
DEC Rainbow 100+ Digital Equipment Corporation 1982
DEC Rainbow 100B Digital Equipment Corporation 1982
DECmate II Digital Equipment Corporation 1982
Digital Microsystems DMS816 Digital Microsystems 1983
DECMate III Digital Equipment Corporation 1984 to 1990
TK90X Color Computer Microdigital Electronica 1985
Computing for engineers Digital Equipment Corporation May 1985
Digital MicroVAX 3100 Digital 1987
Digital MicroVAX 3100-80 Digital 1989
Digital DEC 3000/600 Digital 13th October 1993
Digital DEC Multia (Alpha Generation) Digital 7th November 1994
Digital PC 425SL/e Digital 1996
Digital Personal Workstation 433au Digital Equipment Corporation 1997
MicroDigital Mico 1 Computer MicroDigital 1999

This exhibit has a reference ID of CH7797. Please quote this reference ID in any communication with the Centre for Computing History.


Digital AlphaServer A4100

Click on the Image(s) For Detail


Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum