The ZX81 is a home computer developed by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to …

The Sinclair ZX81, developed by Sinclair Research and manufactured by Timex Corporation in Dundee, Scotland, was the first home computer sold in the United States for under $150.

The ZX81 was launched on 5th March 1981 by Clive Sinclair as the successor to the ZX80, with a larger memory and improved mathematical functions. It was available ready-built (£69.95) or in kit form …

Sep 7, 2025 · The ZX81 was a home computer released in the United States in a slightly modified form from the Timex Sinclair 1000. The ZX81 was produced by Sinclair Research and manufactured by …

May 12, 2025 · The Sinclair ZX81 is an 8-bit home computer launched by Sinclair Research in March 1981. It was designed as an affordable entry into computing, selling over 1.5 million units worldwide.

The ZX81 has the same microprocessor and runs at the same speed as the ZX80, but it has a better BASIC programming language and is cheaper to produce, due to having fewer chips and a simpler …

The Sinclair ZX81, also marketed as the Timex Sinclair 1000 in the US, was a home computer introduced in the UK in 1981. It featured an 8-bit Zilog Z80 CPU (from which the name of the …

Aug 12, 2025 · The ZX81 +38 is a modernized reconstruction of the 1981 Sinclair ZX81, combining retro aesthetics with practical upgrades for enhanced usability and reliability.

Jun 22, 2025 · Enter the Sinclair ZX81, a small, inexpensive machine that opened the door to home computing for thousands of people. Released in 1981, it was the successor to the ZX80 and a …

The Sinclair ZX81 was the third microcomputer built by Sinclair but it had limited functionality. It appeared on the market at the right time, though, and enjoyed much popularity. Sinclair teamed with …