Hmm. Well, first computer in the house was an XT running DOS. The first computer that was mine was an Amiga 600 (my friends all had 500s). These two were mostly used to play games and do homework (essays).
At some point in high school Commodore had imploded and the A600 was replaced with a 486DX2/66 running DOS/4DOS and Windows 3.11; and I saved up enough to buy a modem and get into BBSes and the demoscene. That's what really made me change how I saw computers - they were creative tools and connections to the world. A computer suddenly had very little use if it couldn't connect to another one somehow; and they were devices to make art, music and code.