DEC Microvax 2

The MicroVAX II,  was a mid-range MicroVAX introduced in May 1985. It ran VAX/VMS or, alternatively, ULTRIX, the DEC native Unix operating system.

It used the KA630-AA CPU module, a quad-height Q22-Bus module, which featured a MicroVAX 78032 microprocessor and a MicroVAX 78132 floating-point coprocessor operating at 5 MHz (200 ns cycle time). Two gate arrays on the module implemented the external interface for the microprocessor, Q22-bus interface and the scatter-gather map for DMA transfers over the Q22-Bus. The module also contained 1 MB of memory, an interval timer, two ROMs for the boot and diagnostic facility, a DZ console serial line unit and a time-of-year clock. A 50-pin connector for a ribbon cable near the top left corner of the module provided the means by which more memory was added to the system.

Our example features a TK50 cartridge tape drive and an RD54 Winchester hard drive - which unfortunately may be faulty. The machine is running VMS 5.4.

Manufacturer: Digital Equipment Corporation
Date: May 1985

DEC Microvax 2 Manuals:

Item Manufacturer Date
BASIC Pocket Reference Guide Digital November 1982
BASIC Pocket Guide Digital November 1982
Digital LN03R ScriptPrinter Programmer Supplement April 1987
DIGITAL - Guidelines for VAXcluster System Configurations DIGITAL April 1989
Cray - DEC VAX / VMS Station 4.02 Documentation Update Cray Research Inc December 1989

Magazines RELATED to DEC Microvax 2 in our Library

Item Manufacturer Date
University of Cambridge Computing Service October 1985 Newsletter 121 October 1985
DEC User October 1987 October 1987
ULCC News November 1988 Newsletter 226 November 1988
ULCC News February 1991 Newsletter 250 February 1991

Other Systems Related To DEC Microvax 2:

Item Manufacturer Date
Digital Personal Workstation 433au Digital Equipment Corporation 1997

This exhibit has a reference ID of CH40924. Please quote this reference ID in any communication with the Centre for Computing History.

 

DEC Microvax 2


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