VAX-11/751

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VAX-11/751
Summary
Announcement date: 1980
FRS date: October 1980
Codename: Comet
OS support (VMS): VMS V2.0
CPU Details
CPU name (VMS): KA750
CPU name (console): None [1]
Number of processors: 1
VMS DCL CPU: 2
VMS DCL XCPU: 0
SID: 02006878
XSID: 0
CPU cycle time: 320ns
Instruction-buffer: 8 bytes [2]
Translation-buffer: 512 entries [2]
Control store: 6K 80-bit words [2]
Writable Control Store: 1K 80-bit words [2]
Cache: 4KB [2]
Compatibility mode: Yes [2]
Console processor: CPU
Console device: TU58 [2]
Memory
Minimum memory: 1MB [2]
Maximum memory: 14MB
Physical address lines: 24
Memory checking: 7-bit ECC/longword [2]
I/O
Max I/O throughput: 5.0MB/s
MASSBUS: 3@ 2.0MB/s
UNIBUS: 1 @ 1.5MB/s
LAN support: optional
Performance
VUPs: 0.6


The VAX-11/751 was reportedly a somewhat-ruggedized version of the VAX-11/750 mounted in a standard-width cabinet. Very little information survives about it.

References

[1] CPU Upgrade Guide. Spring-Summer 1992.
[2] VAX Hardware Handbook Volume 1 - 1986.
[3] Systems & Options Catalog. European Edition. Spring 1990.

External links