A ZX-81, when I was about 4 or 5. No sound, no colour, no graphics except text blocks. It came with only two games, Bomber and Space Invaders, and the latter never loaded. We did buy a third, a sort of Elite-like space trading game without the graphics, but I don't remember anything about it and we seem to have lost it. I still have the manual though. Looks in-depth, but how indepth could it have been on 16K? The games were too expensive and rare to buy more.
You could also program on the ZX-81, but by the time we started getting the magazines with BASIC listings to make your own simple stuff the ZX-81 was hardly supported any more.
Bit of a waste of money in hindsight...and it was really quite expensive, especially considering it was during a very hard time.