A history of the microcomputer industry in 300 adverts

Columbia PC: Anything IBM can do...

This is an advert for a hugely-significant machine in the history of the microcomputer - in particular that of the modern PC, in the IBM sense. It's for Columbia Data Products' P...

Dynabyte computers are all business inside and out

This is a nice advert for Dynabyte showing various models in its DB series of microcomputers. The middle box is the company's DB 8/1 microcomputer - a 4MHz Z80 CPU with one paral...

Shelton Sig/Net: 211 Power!

With a design that would not have looked out of place on Gerry Anderson's "Space: 1999", the Shelton sig/net 211 - designed by Chris Shelton, who had - was one of a range of mod...

Ohio C2-8P: An exceptional value in personal computing

Released at about the same time as the company's much larger (and more expensive) Challenger III range, the II was aimed more at the small-business and personal end of the market ...

Microcomputer programming is a snap with the Iasis Computer in a Book

This is a real wild-card entry from Iasis Inc. of Sunnyvale in California - an actual functional computer in a book, with surrounding 250-page instructional material in the form o...

32K. One card. One low price. Only from The Digital Group

The Digital Group was entirely unrelated to the other Digital - Digital Equipment Corporation, or DEC - but was founded in Denver, Colorado, in 1974. It went bust only five years ...

HP85: It works like a big computer, only it's yours

HP's 85, launched this year, was billed as a "scientific desktop" computer. It was built around the company's own proprietary CPU, running at a surprisingly-slow 0.625MHz. However...

The Poly 88 Microcomputer System - from PolyMorphic

PolyMorphic had started out making expansion cards for the Altair 8800 - the 1975 micro that as well being the first affordable microcomputer in the modern sense also gave the wor...

Silicon Office: Now you can do all the filing with one finger

This is a slightly disturbing advert produced by Commodore in partnership with (or sponsorship of) Bristol Software Factory, for the latter's Silicon Office product. It's along t...

Micronet 800: Tunes your BBC into a new channel of news, views, facts and fun

Micronet was a popular subsection of the dial-up information system Prestel. Prestel - which shared a technological specification with television Viewdata systems like Ceefax and ...

Sinclair ZX Spectrum: Colour and sound... High Resolution graphics... from only £125!

This advert shows the Mark 1 Spectrum - as shown by the light grey keys - which retailed for £125 (or around £550 in 2025 terms), and in a bit of a Sinclair theme, promised "comin...

At £299 it's very little. At 64K it's very large

The Commodore 64 was the company's replacement for its VIC-20 machine, the limited but popular home computer which was the first to sell more than 1 million units. Designed by a ...

If you want flexibility and expandability, then you want the Microtan 65

The Microtan 65 was a single-board computer first built by Tangerine in 1980. Available as either a kit, or ready assembled, Tangerine sold around 10,000 of the 6502-based boards b...

CP/M Low-cost microcomputer software

Called at the time a "control program" for microcomputers, hence the initials CP, CP/M had become the de-factor operating system for many microcomputers of the mid 1970s, followin...

TLF Mini 12: Why buy a micro when you can buy a mini for less!

One of the most popular range of minicomputers in the 1970s was DEC's PDP - Programmed Data Processor - series of sometimes room-sized machines (once disk units and printers had b...