MicroVAX III

MicroVAX III was the generic name erroneously given to the 3rd-generation series of DEC VAX microcomputers by the computer press. It was not a formal DEC product; the confusion probably occurred because the KA630 CPU of the MicroVAX II was succeeded by the KA650 CPU‎‎, and people assumed the name of the VAX systems which used it followed.

These computers used the QBUS for their I/O bus only; main memory traffic used the KA650 Main Memory System‎‎. The KA650 CPU‎‎ was implemented in VLSI.

Systems which used the KA650 included:

• MicroVAX 3500
• MicroVAX 3600
• VAXstation 3200
• VAXstation 3500
• VAXserver 3500
• VAXserver 3600

This disambiguation page lists articles which all may be referred to by the title term.
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External links

• VAX 650 - documentation at Bitsavers