Mine was a Timex Sinclair 1000 also. IIRC, it had a 16K expansion pack. We never really had problems with that, but the unit itself would overheat. I programmed my first text adventure game on that and had about 3 games that my uncle had programmed for us.
The next big computer was a Tandy 1400 Laptop that my dad’s job assigned him. It came with a 1200 bps modem. I figured out how to use it and was dialing into the mainframe at college from home.
After that, I had a 486DX-50 that I maxed out on as much hardware that I could. I added the modem, cd-rom, extra hard drive, and doubled the memory from 8 MB to 16 MB.
Wow, some of you guys are old. 1 kb of memory? Sheesh, and I thought I was ancient with my old vic20 with 3k of memory…
My boss actually assembled his first computer with a soldering iron and had to program his own word processor. Apparently it could only handle 1 page of text at a time. Sadly, this is not typical old man hyperbole.
First computer I ever used? A TRS-80 Model II. In Junior High School, the woodworking shop teacher had it set up. He’d teach some “intro to computer” classes during lunch hour, and kids would enter BASIC programs to play Surround and stuff. I spent a lot of hours after school on that computer to play Star Trek…
First computer I ever owned? Atari 800, complete with BASIC cartridge and a whopping 48K of RAM. Woo hoo! Chose it over the Apple II and the TRS-80 because it was easier to program graphics and sound for it. Got the cassette recorder as well, but moved to the disk drive pretty quickly. And Star Raiders is still awesome…