You could build a computer from a kit if you were brave or technically ... were more interested in the games. The SInclair ZX80. Daniel Ryde, Skövde [CC-BY-SA-3.0], via Wikimedia Commons.

With one-handed operation, a spring-loaded connector head, and a lightweight form factor, users can quickly dock or undock their Getac ZX80 with ease. Dual stylus holders on both sides of the dock ...