An update to the Spectrum that essentially took the 48K model and added a QL-style keyboard, enabling the Spectrum to at least in part escape the criticism that was often leveled at the 'dead flesh' feel of the rubber-keyed version (although in actual fact the feel of the keyboard was still very spongy, and still very unlike proper typewriter versions found on other systems). One point to note is that the keys themselves were not glued in place, and could be easily removed with a small amount of force. Consequently, visitors to shops such as WHSmith and Boots would often discover a Spectrum+ with its keys rearranged to spell out rude words. Aside from the change of appearance, the system remained identical to the original Spectrum and so the other curiosity of typing on it, the one-touch keyword entry, still remained.
Donated/on loan from: School of Computing, Electronics and Mathematics, Plymouth University
The Sinclair ZX81 was released by Sinclair Research as the follow-up to the successful ZX80. It shared its predecessors characteristics of a Z80 CPU, membrane keyboard, 1K RAM, black and white display and lack of sound. The ROM, however, was doubled to 8K and the machine ran faster. Like the Z... (read more)Sinclair, 1981
The ZX Spectrum was an 8-bit (Z80A) personal home computer released in 1982 by Sinclair Research Ltd. Originally released in 16K and 48K versions, the Spectrum became massively popular in the UK, and ultimately evolved through a variety of later models including the Spectrum+ (which added a bett... (read more)Sinclair, 1982
Mastering Machine Code on your ZX Spectrum by Toni Baker. 315 pages. (read more)Sinclair, 1983
ZX81 Basic Programming by Steven Vickers. 212 pages. (read more)Sinclair, 1980
Although it retained the Sinclair name, the Spectrum +2 was a product from the Amstrad stable, following their purchase of Sinclair in 1986. As such, it is no coincidence that the design bears more than a passing resemblance to Amstrad's own CPC 464 system. A later variant, the Spectrum +3, con... (read more)Sinclair, 1986
ZX Printer Instructions by Sinclair Research. 16 pages. (read more)Sinclair, 1981
Sinclair ZX81 Software Compilation featuring:
Lunar Landing, Twenty One, Combat, Substrike, Code Breaker and Mayday.
For 16K RAM (read more)Sinclair,