When I was 13, my brother brought home the first computer I'd ever seen. It was a TK-83 with 2 KBytes of RAM, an 16 KBytes ´expansion card´ and a Zilog Z-80 8 bits processor running at 3.25 MHz.
CP-400 with 64 Kbytes of RAM and a Motorola MC6809E 16 bits ´risc´ processor at 0.89 MHz. It was a huge advance: 16 colors thanks to a Motorola MC 6847 video controller.
About one year later, I changed the CP-400 for the best computer I've ever had, a MSX 1 (Expert XP-800): 64 KBytes of RAM, Zilog Z80A processor @ 3.58 Mhz and a Texas Instruments
What was your first computer ?