I HAD to make an account just for this. Things I remember:
1. First pc, 286, 20MB hdd. Turbo button to push the usually 1.8MHz cpu to 8MHz! My dad got it for "work", but all I ever saw him do was play tetris and, funnily enough, pacman off a bootable floppy. He always had that floppy in his briefcase

This was before multitasking, so no alt-tabbing to get to Lotus 1-2-3 or Wordperfect.
That pc rocked Montezuma where levels went dark (you needed an awesome memory for it, and time.... lots of time), another bootable DigDug floppy, Sab, Thexdur, Gauntlet with funny ascii sprites, Calgames, Lost Vikings and DeathTrack. Fun times indeed, until my brother decided formatting the drive would free up some space :/ When it got back after a fix, we made ramdrives for games in autoexec!

Kids younger than 10, mind you, all before the internet! Now I see post grad students scratching their heads when you propose they do the same.
After upgrading to AMD 586 I think it was...
2. Serial cables for doom, duke nukem, need for speed, demolition derby when the damn networking decided to work.
3. R7 all weekend calls from Telkom. Just make sure your mom never picks up the other phone located in her room

. And throw a blanket over modem to muffle sound lest you have a hiding coming your way.
Glorious days indeed!