The Silicon Valley Guy Handbook, a tongue-in-cheek manual to understanding the prototypical computer nerd.

A comptometer, a 1914 mechanical adding machine made by the millions. A similar machine was later used at Los Alamos to calculate differential equations for the Manhattan Project.

An Apple II computer signed by Steve Wozniak.

A screen displaying a working version of Microsoft Windows version 1.0.

One of the oddest items in the DigiBarn collection is this device, created in 1979 by early Apple employee Daniel Kottke, which was a portable digital music player. Damer called it "the ancestor of the iPod."

One of the earliest artifacts linking Microsoft to Apple, this cassette contains a copy of Microsoft's Applesoft BASIC.