VAX-11/725
From Computer History Wiki
					
| VAX-11/725 | |
| Summary | |
|---|---|
| Announcement date: | October 1983 | 
| Codename: | Low Cost Nebula | 
| OS support (VMS): | VMS V?.? to VMS V5.1 | 
| 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 | 
| Maximum memory: | 3MB | 
| 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-11/725 is a VAX-11/730 in a smaller enclosure; like the -11/730, it uses a UNIBUS for its I/O bus. 
References
[1] VAX Hardware Handbook Volume 1 - 1986. 
[2] Systems & Options Catalog. European Edition. Spring 1990. 
External links
- VAX Hardware Handbook Volume 1 - the VAX-11/725 is described on pages 1-5–1-8 (pp. 20-23 of the PDF) and covered in detail in Chapter 3 (pp. 132-152)
- VAX-11/725 and VAX-11/730 Software Installation Guide (AA-M546C-TE)
- VAX-11/725 - image of marketing brochure

