【Toshiba】 TOSBAC UX-300

Published on Jun. 1, 2006
Last updated on Jun. 22, 2023

This was a desk-top UNIX computer for science and engineering, marketed by Toshiba in 1982.

This machine incorporated Japanese language functionality while retaining the structure of AT&T's UNIX version 7 (later called "UNIX System III"), and was the pioneer of Japanese language UNIX. As a science and engineering computer, it was equipped with graphics processing capability, and also provided support for instrumentation via GP-IB and RS-232C interfaces. At the time, the CRT was unique, and A4 size graphics could be displayed using a 15-inch vertical CRT. The CPU was the T-88000, which was based on 16-bit SOS (Si On Sapphire) technology developed by Toshiba. Functionality was later enhanced in the UX-300F and UX-300FII, and upgrading to 32-bits was achieved in the UX-700. Toshiba also developed the UX-400 employing the M68020 general-purpose processor. With these additions, the series was completed.

  UX-300FII UX-400 UX-700
CPU T-88000 (16MHz/16bit) MC68020 (16.7MHz/32bit) Microprogram control (32bit)
COPROCESSOR none MC68881 High-speed arithmetic hardware optional
Main memory capacity 1MB 2-8MB 1-4MB
Magnetic disk 5.25-inch (46MB) 5.25-inch (68MB) 8-inch (92MB or 132MB)
Max. of 2 units connectable Max. of 2 units connectable Max. of 2 units connectable
Floppy disk 8-inch (1MB) 8-inch(1MB) 8-inch (1MB)
Parallel interface GP-IB (1port) GP-IB (2port) GP-IB (2port)
Serial interface RS-232C(2-8port) RS-232C, RS-422 (12port) RS-232C, RS-422 (16port)
Magnetic tape Cartridge tape (30MB) Cartridge tape (30MB) Cartridge tape (30MB),
Open reel tape
Dimensions (WxHxD)
420x175x575 300x600x700 500x900x750