Skip to content

Floppy Days 167 - Interview with Peter Jennings, Microchess and VisiCorp

September 28, 2026 · 1 h 12 min

Show notes

Interview with Peter Jennings, Microchess & VisiCorp

Patreon: https://www.patreon.com/FloppyDays

Sponsors:

Hello, and welcome to episode #167 of the Floppy Days Podcast, where you can learn about obsolete, but still very fun, technology of the past!

In this episode we talk with someone that was right there in the early days of computers and who created some amazing software for the very early, very primitive KIM-1 computer. In fact, he is credited with producing the very first microcomputer game to be sold commercially. I'm speaking of Peter Jennings, the creator of MicroChess for the KIM-1 and later ported to many other early home computers, such as the TRS-80 Model I/III, Commodore PET, Apple II, Tandy CoCo, and Atari 8-bit.

Peter co-founded Personal Software, which later became VisiCorp. Proceeds from MicroChess sales helped finance the development of VisiCalc, the first-ever spreadsheet program, which I'm sure you've heard of.

Peter also developed the first model of the ChessMate while working for Commodore.

I think you'll find his story pretty interesting. He's done a lot throughout his career and he's met a lot of the early computer icons.

Interview Links

All episodes of Floppy Days Vintage Computing Podcast

Settings

Display

Language

Decides which stations you see first on the home page.

History

Recently played stations and episodes and your latest searches are only stored in this browser.

Notifications

A short notice when a podcast you follow has a new episode. Turn off single podcasts with the bell on their page.

Account

Save favorites – in the app and on the website.

Keyboard shortcuts

/
Open search
Space
Play or pause
← →
In the player: back 15 s, forward 30 s (episodes) · in a row: next tile
↑ ↓
In a row: target within the tile
Home / End
In a row: first or last tile
Esc
Close window or menu
?
This overview
Now playing

Go to station page

Play next

    Add episodes with “Play next” – they play after the current episode.