Keyboard Builders' Digest
Save 5% at Lume Keebs! Code: KBDNEWS
Keyboard Builders' Digest / Keyboard Spotting

TRS-80 Model 4

The TRS-80 Model 4 is the last Z80-based home computer family by Radio Shack, sold from April 1983 through late 1991. Posted by Tomegajones.

KBD.news
Published October 25, 2021
150,000 readers. 54 supporters. Help keep kbd.news free - like Derek Tam, sungo, and Chase M..

Tandy Corporation introduced the TRS-80 Model 4 in April 1983 as the successor to the TRS-80 Model III. The Model 4 has a faster Z80A 4 MHz CPU,[5] larger video display of 80 columns by 24 rows, bigger keyboard, and can be upgraded to 128KB of RAM (source).

According to an archive 80 micro magazine issue, a diskless Model 4 with 16KB RAM cost $999; with 64KB RAM and one single-sided 180K disk drive it cost $1699; with 64KB RAM and two drives it cost $1999.

More info: https://en.wikipedia.org/wiki/TRS-80_Model_4

Do you like this post? Share, donate, subscribe, tip me off!

Published on Mon 25th Oct 2021. Featured in KBD #49 (source).

Related

Berthold Diatronic

This cool Berthold fototype diatronic typesetting machine was spotted by OnlineLion.

ESA keyboard

A keyboard from the ESA Director of Operations bench spotted by u/evil_noodles.

Datadesk LittleFingers

After buying a Datadesk LittleFingers LF-2100 keyboard, u/FansForFlorida posted an informative gallery.

HP 264X keyboard

A mouthwatering HP 264X keyboard from 1974 reviewed by Chyrosran22.

IBM Model M5-2

An IBM Model M5-2 with a cute little trackball. Posted by opalinemoth.
×
top