VAX-11/725

VAX-11/725
Summary
Announcement date:	October 1983
Codename:	Low Cost Nebula
OS support (VMS):	VMS V3.5 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.

It uses the RC25 dual disk drive as its load and system disks.

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