Difference between revisions of "VAX 8650"
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The '''VAX 8650''' was an improved version of [[Digital Equipment Corporation|DEC]]'s second-generation [[VAX]], the [[VAX 8600]]. An 8600 could be field-upgraded to an 8650. | The '''VAX 8650''' was an improved version of [[Digital Equipment Corporation|DEC]]'s second-generation [[VAX]], the [[VAX 8600]]. An 8600 could be field-upgraded to an 8650. | ||
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Revision as of 19:13, 6 May 2024
| VAX 8650 | |
| Summary | |
|---|---|
| Announcement date: | 4 December 1985 |
| Codename: | Morningstar |
| OS support (VMS): | V4.3 |
| CPU Details | |
| CPU module: | KA865 |
| Number of processors: | 1 |
| CPU technology: | ECL Gate Array |
| CPU cycle time: | 55ns |
| CPU clock: | 18.18MHz |
| Instruction-buffer: | 8 bytes [1] |
| Translation-buffer: | 512 entries [1] |
| Writable Control Store: | 8K 86-bit words [1] |
| Cache: | 16KB [1] |
| Compatibility mode: | Yes |
| Console processor: | T-11 [1] |
| Console device: | RL02 [1] |
| Memory | |
| Minimum memory: | 16MB [1] |
| Maximum memory: | 368MB |
| Memory checking: | 7-bit ECC/longword [1] |
| I/O | |
| Max I/O throughput: | 26MB/s |
| SBI: | 1-2 [1] |
| MASSBUS: | 4 @ 2.0MB/s [1] |
| UNIBUS: | 7 @ 1.5MB/s |
| LAN support: | optional |
| Performance | |
| VUPs: | 6 |
The VAX 8650 was an improved version of DEC's second-generation VAX, the VAX 8600. An 8600 could be field-upgraded to an 8650.
From Wikipedia
- The VAX 8650, code-named "Morningstar", was a faster version of the VAX 8600 introduced on 4 December 1985. It was originally to be named "VAX-11/795", but was renamed before launch. The VAX 8600 was the last VAX to be 100% compatible with the VAX-11/780 and VAX-11/785, to have the PDP-11 compatibility mode, and to use the SBI also used by the VAX-11/78x. The CPU had a 55 ns cycle time (18.18 MHz).
This page contains content from Wikipedia, article VAX_8000#VAX_8650, under the Creative Commons license.
References
- [1] VAX Hardware Handbook. Volume 2-1986.
External links
- 8600 - documentation at Bitsavers
- VAX 8600 System Upgrade Procedure (EK-8600I-S1-001)
- VAX Hardware Handbook Volume 2 - the VAX 8650 is described on page 1-9 (pg. 18 of the PDF) and covered in detail in Chapter 3 (pp. 50-76)
- VAX 8600/8650 SBIA Technical Description (EK-DB86X-TD-002)
| v • d • e VAX Computers and Operating Systems |
|---|
| VAX-11/7xx (including VAX 86x0) - VAX-11/780 • VAX-11/785 • VAX-11/750 • VAX-11/730 • VAX 8600 • VAX 8650
VAX 8000 series (excluding VAX 86x0, above) - VAX 82xx/83xx series • VAX 85xx/87xx/88xx series MicroVAXen (many types also come in VAXserver and VAXstation models) - MicroVAX I • MicroVAX II VAXstation Series - VAXstation I • VAXstation II Late Model VAXen - VAX 4000 series • VAX 6000 series • VAX 7000 series • VAX 9000 series • VAX 10000 series |
| Special Purpose VAXen - VAXft series • rtVAX series • Infoserver series
Clones - CM 1700 • TPA-11/580 |
