Cover of the April 1980 issue of 80 Microcomputing
80 Microcomputing was a magazine that was dedicated to the TRS-80 line of computers. The Model I was released in 1977. The Model II really doesn't belong to this series as it was largely incompatible and more of a professional workstation, the Model III was released in 1980 and the Model 4 was released in 1983. I never owned one but in my freshman year of high school, we used Mode IIIs and Model 4s in a BASIC programming class. The April 1984 issue includes:
Application
Itinerary - A type-in program designed to help you plan an itinerary.
Magazine Index - A type-in program that allows you to index up to 300 articles in your magazine collection.
Titler - A type-in program that lets you generate captions for video productions.
Education
More Night School - The second part of an article on a computer education course at Loyola University.
Pre-School Math - A type-in educational program to help teach pre-school math.
Games
Ball Box - A type-in game that is a more complex version of pong.
Rock, Scissors, Paper - A type-in game that simulates Rock, Paper, Scissors.
General
Computer Derelict - Confessions of a computer addict.
A Dealer's Experience - The difficulties dealers have dealing with Radio Shack.
Table of Contents from the April 1980 issue of 80 Microcomputing
Hardware
Build a Light Pen - Instructions for building a light pen. Before the mouse completely established its dominance as an input device, light pens were a popular choice in some circumstances.
Reverse Video - How to get reverse video with your TRS-80.
Mork & Mindy Monitor - Using a TV instead of a dedicated monitor with the TRS-80.
Reviews
RSM-2 Monitor - A review of the RSM-2/2D monitor from Small Systems Software.
CBASIC Review - A review of CBASIC, a CP/M based BASIC interpreter.
Style
INKEY$ - A technique for accepting user input without the use of the enter key.
Break Disable - A type-in program for disabling the break key.
Utility
Level II to Level I - Instructions for converting software designed to load on "Level 1" TRS-80s to load on "Level 2" TRS-80s.
Babybeep - A type-in machine language utility for creating sound effects.
Multiple USRs - A technique for using up to ten USR subroutines.
MACROPOKE Monitor - A technique for incorporating machine language code segments to your BASIC programs.
Regulars
80 Remarks - A look at enhancements in recent versions of BASIC.
80 Applications - Using ports to control things with the TRS-80.
Captain 80 - A brief look at new software for the TRS-80 including Temple of Apshai, Night Flight, Jet Fighter Pilot, and more.
The Assembly Line - An assembly language tutorial.
80 Accountant - A type-in accounting program for the TRS-80.
Back cover of the April 1980 issue of 80 Microcomputing