[ProtectOurFreedom]

I bought a Sinclair ZX-81 when it first came out and that was WAY before it was marketed as the Timex-Sinclair. I recall the black case and squishy membrane keyboard. I used a small B&W television for a monitor and a Radio Shack cassette tape player to record programs. It was a fun curiosity, but I never did anything remotely useful on it except learn BASIC.

Clive Sinclair and the ZX-81, circa 1981.

[TangoLimaSierra]

I started out with the same setup. Learned Basic on it then moved up to the Timex Sinclair 128K. (Who would ever need more that 128K of memory?)

After a a few months it would heat up so bad it would shut down so the last few months of use was while it was setting on an ice bag or on an A/C vent.