Difference between revisions of "VAX-11/730"
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| Codename = Nebula | | Codename = Nebula | ||
| OS-support-VMS = VMS V3.0 | | OS-support-VMS = VMS V3.0 | ||
| − | | CPU-module = KA730 | + | | CPU-module = [[KA730 CPU|KA730]] |
| Num-proc = 1 | | Num-proc = 1 | ||
| CPU-technology = Bipolar Schottky | | CPU-technology = Bipolar Schottky | ||
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It was also sold as [[VAX-11/725]], which was a smaller-size packaging of the same machine. | It was also sold as [[VAX-11/725]], which was a smaller-size packaging of the same machine. | ||
| + | |||
| + | It uses the [[UNIBUS]] for one of its [[input/output]] [[bus]]es; the 'Port Bus', used for data transfer, is the other. The only device on the Port Bus is the [[RB730 Integrated Disk Controller]], which also connects to the UNIBUS for [[interrupt]]s (it plugs into a dedicated, custom [[backplane]] slot). The [[main memory]] uses the same internal memory bus as the [[MS750 Memory System]] (and thus the same memory array modules, 1-5 of them). | ||
| + | |||
| + | The boards are all mounted in a [[BA11-Z mounting Box]], which holds a custom 12-slot backplane ([[DEC part number]] 70-18080-0-1). The [[front panel]] functionality is performed by an 8085A [[microprocessor]], which uses a [[TU58 DECtape II|TU58]] [[magnetic tape drive]] for [[mass storage]]. | ||
{{semi-stub}} | {{semi-stub}} | ||
Revision as of 22:02, 5 July 2022
| VAX-11/730 | |
| Summary | |
|---|---|
| Announcement date: | April 1982 |
| Codename: | Nebula |
| OS support (VMS): | VMS V3.0 |
| CPU Details | |
| CPU module: | KA730 |
| Number of processors: | 1 |
| CPU technology: | Bipolar Schottky |
| CPU cycle time: | 270ns [1] |
| Instruction-buffer: | 4 bytes [1] |
| Translation-buffer: | 128 entries [1] |
| Writable Control Store: | 16K 24-bit words [1] |
| Compatibility mode: | Yes [1] |
| Console processor: | 8085A [1] |
| Console device: | TU58 |
| Memory | |
| Minimum memory: | 1MB [1] |
| Maximum memory: | 5MB |
| Physical address lines: | 24 [1] |
| Memory checking: | 7-bit ECC/longword [1] |
| Memory cycle: | 810ns [1] |
| I/O | |
| UNIBUS: | 1 @ 1.5MB/s [1] |
| LAN support: | optional |
| Performance | |
| VUPs: | 0.3 |
The VAX-11/730 was the third VAX introduced, and the slowest implementation of the VAX architecture to have been made. By way of extensive microcoding of the large architecture, the CPU was shrunk to three hex boards. The machine seems to have been most popular for application development projects for the VAX - where the architecture was needed, but not necessarily performance.
It was also sold as VAX-11/725, which was a smaller-size packaging of the same machine.
It uses the UNIBUS for one of its input/output buses; the 'Port Bus', used for data transfer, is the other. The only device on the Port Bus is the RB730 Integrated Disk Controller, which also connects to the UNIBUS for interrupts (it plugs into a dedicated, custom backplane slot). The main memory uses the same internal memory bus as the MS750 Memory System (and thus the same memory array modules, 1-5 of them).
The boards are all mounted in a BA11-Z mounting Box, which holds a custom 12-slot backplane (DEC part number 70-18080-0-1). The front panel functionality is performed by an 8085A microprocessor, which uses a TU58 magnetic tape drive for mass storage.
See also
References
External links
- VAX Hardware Handbook Volume 1 - the VAX-11/730 is covered in Chapter 3 (pp. 132-152 of the PDF)
- VAX/730 - documentation at Bitsavers
- VAX-11/730 Central Processing Unit Technical Description (EK-KA730-TD-001)
- 11/730-Z Field Maintenance Print Set (MP01270)
| 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 |
