3R Computers Avatar TC100 Universal Terminal Converter

The 3R Avatar TC100 series was a dual-processor system used with a dumb terminal to give it full workstation capabilities–hence the reason it is called a terminal converter. It used both a Z80 and 8088-2 CPUs so it could run both CP/M and MS-DOS applications.

3R Computers Avatar TC100
Source: 3R Comptuers, 1983

The company offered an enhanced model, the Avatar TC110, which had a parallel port and 5MB hard drive. A TC 3278 modal was intended for use with only the IBM 3278 or 3178 terminals. The company is also known as RRR Computers.

Introduced: 1983
Original Retail Price: $2,195
Base Configuration: Z80A and 8088-2 CPUs, 128K RAM (256K max), 2 RS-232C ports, 5.25-inch floppy disk drive, clock/calendar, 85W power supply
Size/Weight: 7.25H x 12.25W x 12.75D inches, 20 lbs.
Important Options: parallel interface; second floppy disk drive; 5MB, 10MB, or 20MB hard disk drive

Published by

Michael Nadeau

I am the author of Collectible Microcomputers (Schiffer Books, 2002) and have been an editor of many technology publications including BYTE, 80 Micro, and HOT CoCo. My interest in the history of information technology is broad. I use my blogs, ClassicTech and Vintage Computer Photos, to build on the work I did for Collectible Microcomputers.

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