History
From Clive Sinclair’s idea to the end of the 8-bit era. Twelve years that changed how millions of people first met a computer.
- 1980The ZX80 — the company’s first mass-market home computer.
- 1981The ZX81 cements the success: cheap and accessible.
- 1982The ZX Spectrum arrives: colour, sound, a legend.
- 1984The ZX Spectrum+ with a “proper” keyboard.
- 1985The ZX Spectrum 128: more memory and a sound chip.
- 1986Amstrad buys the rights; the +2 ships with a built-in cassette deck.
- 1992Spectrum production winds down — the end of an era.
Articles
- The radio market: how memory, boards and pirated cassettes were bought
A Spectrum clone was not born in a shop. It was assembled piece by piece from what was sold at the radio market: chips bought loose, boards, flashed ROMs and cassettes with other people’s programs. We look at the market as the infrastructure that fed the post-Soviet Spectrum.
8 min read Read → - Self-assembly: the computer soldered together on a kitchen table
A ready-made Spectrum was almost nowhere to be bought, but it could be soldered together — from a printed schematic, a handful of ordinary chips and patience. We explain why self-assembly became mass and how a home kitchen turned into an assembly shop.
8 min read Read → - The Spectrum behind the Iron Curtain: how clones came to Ukraine
In the West the Spectrum was made cheap by a custom chip and mass production. Behind the Iron Curtain its price was driven down differently — by reverse-engineering, discrete logic and self-assembly. We look at why the Spectrum, of all machines, became the people’s computer here.
9 min read Read → - The Ikar-64: a Kharkiv-made Spectrum clone from the museum’s collection
On power-up this machine displayed “**** IKAR-64 ****”. It was built in 1991 in Kharkiv at Khartron — from discrete logic, in a metal case. We tell the story of a Ukrainian Spectrum clone from our collection and its neighbours across the country.
8 min read Read → - What’s inside: the Z80, the ULA and the magic of 48 kilobytes
Under the ZX Spectrum’s wedge case sit only a handful of chips: a Z80 processor, 16 KB of ROM and 48 KB of RAM. We look at how they share a single address space — and why the machine’s memory is not “flat”.
9 min read Read → - The rubber keyboard and other design compromises
Contemporaries compared the ZX Spectrum’s keyboard to “dead flesh.” Yet the very rubber that spoiled the typing feel was a direct result of the chase for a low price. We read the machine’s design as an engineering of thrift.
8 min read Read → - Colours that fight: the attribute clash phenomenon
On the ZX Spectrum, colour was set not per pixel but per 8×8 cell — so shapes on screen often “painted” the background around them. We look at how saving memory created the platform’s most recognisable visual signature.
8 min read Read → - How Sinclair built a computer for the price of a television
In April 1982 Sinclair unveiled a machine that cost £125 — half the price of the BBC Micro. We look at exactly where the savings came from that made a home computer affordable.
8 min read Read →