Texas Instruments TI99/4a

The Texas Instruments TI-99/4A followed the TI99/4, which was let down by a poor keyboard, and was released in 1981. Based on the TMS9900 microprocessor, the TI99/4 was the first 16-bit home computer.

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ZX81 – out of the box

Sinclair ZX81 in box

It must be an age thing but I’ve recently started (investing?) in retro kit, from the 1990s, 1980s and earlier. This has included hifi (including recently a superb Pioneer A400 – http://www.gbaudio.co.uk/data/a400.htm) amplifier, and vinyl LPs, but one item that I’ve had on the list for a while is a Sinclair ZX81 home computer. I bought…

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