TRS-80 Microcomputer System Model 1 Level 1

The TRS-80 Model I, or just TRS-80 Microcomputer System as shown on the computer itself, was introduced in August 1977. It was one of the first low cost microcomputers available to the general public in large numbers, listing for $600 for a 4k machine. Given the fact that it was distributed through Radio Shack stores, it's distribution network was already in place and quite large. The machine initially came with 4k of RAM amd included Level I BASIC and later was upgraded to 16k of RAM with the addition of a numeric keypad to the keyboard and Level II BASIC. Unfortunately, it's image soon started to be tarnished by problems caused by things such as quirky connections between the computer and it's external expansion chasis, quickly earning it the nickname 'Trash-80'. In spite of these problems, the machine gained quite a following and was to be the first in a long line of computers sold through Radio Shack stores. It was followed by the TRS-80 Model III which was essentially the Model I and it's display placed together in a single desktop enclosure. The Expansion Interface, Tandy catalog# 26-1140, -41, & -42, allowed the addition of upto 32k of RAM, up to 4 disk drives, serial and parallel devices. According to Tandy's website, more than 200,000 TRS-80 computers were sold from 1977 to 1981

The TRS-80 Video Display unit was manuafctured in April 1978 with a catlogue numberr of 26-9201

Our model is he 26-1003 Model 1 Level 1 16k W/Keypad CPU/KB which togethger with associated manuals, Expansion Interface and Disk Drives was kindly donated by Helen Williams

Manufacturer: Radio Shack - Tandy
Date: 1977

TRS-80 Microcomputer System Model 1 Level 1 Manuals:

Item Manufacturer Date
TRS-80 Colour Graphic Printer Manual Radio Shack
TRS Model I conversion for TRS-80 Radio Shack August 1980
TRS-80 Model I/III Series 1 Editor Assembler Radio Shack 1981
TRS-80 Model 100 Portable Computer Owners Manual Radio shack 1983
Tandy TRS-80 Model 100 Quick Reference Guide Tandy 1983

Magazines RELATED to TRS-80 Microcomputer System Model 1 Level 1 in our Library

Item Manufacturer Date
REM 80 - Volume 3, Issue 4 The North West TRS-80 USers Group
REM 80 - Volume 4, Issue 2 The North West TRS-80 USers Group
REM 80 - Volume 4, Issue 4 The North West TRS-80 USers Group
REM 80 - Volume 5, Issue 2 The North West TRS-80 USers Group
REM 80 - Volume 5, Issue 3 The North West TRS-80 USers Group
REM 80 - Volume 5, Issue 4 The North West TRS-80 USers Group
REM 80 - Volume 6, Issue 5 The North West TRS-80 USers Group
REM 80 - Volume 7, Issue 1 The North West TRS-80 USers Group
REM 80 - Volume 8, Issue 4 The North West TRS-80 USers Group
REM 80 - Volume 9, Issue 4/5 The North West TRS-80 USers Group
REM 80 - Volume 8, Issue 3 The North West TRS-80 USers Group
REM 80 - Volume 11, Issue 1 The North West TRS-80 USers Group
REM 80 - Volume 6, Issue 1 The North West TRS-80 USers Group
REM 80 - Volume 7, Issue 4 The North West TRS-80 USers Group
REM 80 - Volume 9, Issue 6 The North West TRS-80 USers Group
REM 80 - Volume 6, Issue 3 The North West TRS-80 USers Group
REM 80 - Volume 9, Issue 1 The North West TRS-80 USers Group
REM 80 - Volume 9, Issue 2 The North West TRS-80 USers Group
Popular Electronics - October 1977 October 1977
Personal Computer World - August 1978 August 1978
Personal Computer World - September 1978 September 1978
Practical Computing - October 1978 October 1978
Personal Computer World - October 1978 October 1978
Practical Computing - November 1978 November 1978
Practical Computing - December 1978 December 1978
TRS--80 Computing Volume 1 Number 1 Radio Shack - Tandy 1979
Practical Computing - August 1979 August 1979
Practical Computing - November 1979 November 1979
Practical Computing - January 1980 January 1980
Personal Computer World - June 1980 June 1980
REM 80 - Volume 3, Issue 1 The North West TRS-80 USers Group 1981
REM 80 - Volume 3, Issue 3 The North West TRS-80 USers Group 1981
Personal Computer World - July 1981 July 1981
Personal Computer World - September 1981 September 1981
Your Computer - December 1981 December 1981
TRS-80 Microcomputer News Volume 1 Number 1 Radio Shack - Tandy January 1982
TRS-80 Microcomputer News Volume 1 Number 2 Radio Shack - Tandy February 1982
Personal Computer World - May 1982 May 1982
Personal Computer World - December 1982 December 1982
REM 80 - Volume 5, Issue 5 The North West TRS-80 USers Group 1983
REM 80 - Volume 5, Issue 6 The North West TRS-80 USers Group 1983
REM 80 - Volume 6, Issue 2 The North West TRS-80 USers Group 1983
Practical Computing - April 1983 April 1983
Personal Computer World - August 1983 August 1983
TRS-80 Microcomputer News October 1983 October 1983
Practical Computing - October 1983 October 1983
Call-A.P.P.L.E. - November 1983 November 1983
REM 80 - Volume 7, Issue 2 The North West TRS-80 USers Group 1984
REM 80 - Volume 6, Issue 4 The North West TRS-80 USers Group 1984
Personal Computer World - February 1984 February 1984
Personal Computer World - May 1984 May 1984
Byte May 1984 May 1984
Personal Computer World - August 1984 August 1984
Byte March 1984 October 1984
REM 80 - Volume 7, Issue 5 The North West TRS-80 USers Group 1985
REM 80 - Volume 8, Issue 1/2 The North West TRS-80 USers Group 1986
Practical Computing - April 1980 25-08-2009
Practical Computing - January 1981 09-09-2009

This exhibit has a reference ID of CH16821. Please quote this reference ID in any communication with the Centre for Computing History.

 

TRS-80  Microcomputer System  Model 1 Level 1

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