VAXstation

The VAXstation is a discontinued family of workstation computers developed and manufactured by Digital Equipment Corporation using processors implementing the VAX instruction set architecture.

[4] The VAXstation 100 consisted of a desk-side unit housing a Motorola 68000 processor, a dedicated bit blit accelerator built from AMD 2901 logic, and a total of 640KB of RAM (128KB for the CPU, and a 512KB frame buffer).

Attached to this unit was a 19" monochrome monitor, an LK201 keyboard, a mouse, and optionally a graphics tablet and five-button puck.

[9] Introduced in October 1984, it was code named "Seahorse", and used the KD32 CPU module containing a 4 MHz (250 ns) MicroVAX I processor.

Compared with the standard VAXstation II, a number of the slots on the backplane were filled with epoxy to limit the system's upgradability.

[10] It was discontinued when Digital discovered that enterprising customers were removing the epoxy, or replacing the backplane in order to convert the RC into a standard VAXstation II.

[11] Introduced in December 1985, it was code named "Caylith", and was a variant of the VAXstation II with hardware-enhanced, high-performance color graphics.

[1] Introduced in February 1987, it was code named "VAXstar" or "Kapri", and used the KA410 CPU module containing a 5 MHz MicroVAX II processor with no cache.

[1] Code named "PVAX", it used the KA42-A CPU module containing an 11.12 MHz (90 ns) CVAX microprocessor with a 64 KB external cache.

[12] Code named "PVAX rev#7", it used the KA42-B CPU module containing a 16.67 MHz (60 ns) CVAX+ microprocessor with a 64KB external cache.

[1] Code named "PVAX", it used the KA42-A CPU module containing an 11.12 MHz (90 ns) CVAX microprocessor with a 64KB external cache.

[13] Code named "PVAX rev#7", it used the KA42-B CPU module containing a 16.67 MHz (60 ns) CVAX+ microprocessor with a 64KB external cache.

[1] Code named "RigelMAX", it used the KA43-A CPU module containing a 35.71 MHz (28 ns) Rigel microprocessor with a 128 KB external cache.

Code named "Mayfair/GPX", it used the KA650 CPU module containing a CVAX chip set operating at 11.12 MHz (90 ns cycle time) with 64 KB of external secondary cache.

It used the KA46 CPU module containing a Mariah chip set operating at 55 MHz (18 ns cycle time) with 256 KB of external cache.

The workstation used the KA49-A CPU module containing a NVAX microprocessor operating at 74.43 MHz (14 ns cycle time) with a 256 KB external secondary cache.

It was essentially a VAX 8250 packaged in a deskside enclosure with a 3D graphics pipeline developed jointly with Evans & Sutherland.