The motherboard of the Timex Sinclair 1000 released in 1982, was the American version of the ZX81, and the first computer to cost under 100$. It has black and white graphics and no sound, an integraded membrane keyboard, and an expansion slot. I was followed by the model 1500 in 1983.
The Motherboard of the Timex Sinclair 1000 contains the 8-bit 3.25MHz Zilog Z80A CPU. It has 2 KB of memory and a 60Hz NTSC TV modulator.
<a href="//commons.wikimedia.org/wiki/User:MarcoTangerino" title="User:MarcoTangerino">MarcoTangerino</a>
2018-02-25 17:33:25
<span class="int-own-work" lang="en">Own work</span>