Learned basic on that thing as well. I remember having a magazine subscription that included a program in the center fold. Then saving it to a cassette tape to enjoy later. Lol
An Atari 800 joystick, which was basically the same as the 2600 one. Many evenings spent playing Zaxxon, Miner 2049er, and so on, as well as simple games typed in from magazines.
Then I bought an NES and didn't look back. Super Mario Bros. was way more advanced, not only in terms of graphics but also the fluidity of movement and the game pad design. And it was more fun!
You may already know this now, but I want to post it for those who don't because it's really cool and way ahead of its time.
That was for the VMU, the visual memory card. It stored your game saves but also some games had minigames you could play directly on it, often with bonuses in the main game. In the Sonic Adventure games you could take care of chao and such on it. That thing ate batteries like candy though.
Not counting dedicated Pong-type machines, this magnificent bastard. Still one of the best for precise twitch gaming with the short throw of the stick, and the paddles seemed slightly less prone to jitter.
Keyboard and mouse, but when I started using computers I was so young that my hands were too small to hold the mouse properly, so I left clicked with my thumb up until three or four years ago when I got my first ergonomic mouse. Kinda funny how long habits can stay with you.
I’ve just had to search for the right model but the earliest that I remember is the Coin Control Competition Pro 5000. We had it in a dark/deep blue colour.