VAXstation II
From Computer History Wiki
| VAXstation II | |
| Summary | |
|---|---|
| Announcement date: | 24 January 1986 |
| Codename: | Caylith |
| OS support (VMS): | MicroVMS V4.1 |
| CPU Details | |
| CPU name (VMS): | KA630 |
| CPU name (console): | KA630-A |
| CPU module: | KA630 |
| Module: | M7606 [1] |
| Number of processors: | 1 |
| VMS DCL CPU: | 8 |
| VMS DCL XCPU: | 1 |
| SID: | 08000000 |
| XSID: | 01010000 |
| CPU chip: | 78032 |
| FPU chip: | 78132 |
| CPU technology: | ZMOS |
| CPU cycle time: | 200ns |
| CPU clock: | 40MHz |
| Instruction-buffer: | 8 bytes |
| Cache: | None |
| Compatibility mode: | No |
| Console processor: | CPU |
| Console device: | None |
| Memory | |
| Minimum memory: | 2MB [1] |
| Maximum memory: | 16MB |
| Physical address lines: | 30 |
| On-board memory: | 1MB [1] |
| I/O | |
| Max I/O throughput: | 3.3MB/s |
| Q-bus: | 1 @ 3.3MB/s |
| LAN support: | optional [1] |
| Performance | |
| VUPs: | 0.9 |
The VAXstation II was a follow-on early VAX workstation. It uses a special bus carried on over the back connectors as well as the CD interconnect as its main memory bus (the address space of the QBUS was limited to 4MB, and the data section is only 16 bits wide); and the QBUS only for its I/O bus. Its CPU was the MicroVAX II; the VCB01 Video Controller provided its bit-mapped display.
References
[1] VAXstation II Technical Manual, BA123 Enclosure. AZ-GMZAB-MN
