I remember playing Oregon Trail on an Apple ][ in the "computer lab" during my brief public school incarceration. When my dad got an IBM clone back in the day, I played Where in the World is Carmen Sandiego and OutNumbered! along with some other geography, history, and math games. My sisters played Reader Rabbit and Richard Scarry's Busytown a fair bit later on.

My first real game was probably the version of Descent bundled with a sound card.