|
 The MicroVAX II. Nearly as fast as the VAX 11/750, runing at 0.9VUPS. Codenamed "Mayflower", released in 1985, you could have one for $20,000. The MicroVAX II's CPU was the KA630. The KA630 is pictured here with an Intel 80486DX-33 processor, which is probably about 5 times faster. The CPU had one Megabyte of internal RAM, and used a flat cable to connect to up to two RAM boards, to reach a maximum total of 16MB.
There are two MicroVAX II's in the museum. One in the cool BA23 tower, and one in the 60Kg BA123 enclosure. 
The BA23 machine has the following boards installed: KA630 CPU M7606 8MB RAM M7609
8MB RAM M7609
DELQA-M M7516 TQK50-AA M7546
DZQ11-M M3106 UC07
This machime runs VMS 5.5-1, residing on a SCSI 50-pin disk drive connected to the UC07.
The BA123 machine has the following boards installed: KA630 CPU M7606
8MB RAM M7609
8MB RAM M7609
2-bitplane graphics cards
DELQA-M M7516
ESDI disk controller WQESD
RQDX3, MFM disk & floppy controller M7555
TQK50-AA M7546
DHV11, 8-line async M3194 The BA123 machine has a TK50 tape drive, an RX33 double floppy drive, and a CDC ESDI hard drive. 
The rear panel photo shows 8 serial ports for connecting terminals or printers, a DELQA ethernet port, the console cable, and BNC connectors used by the 2-plane graphics cards.
|
