DIY Laptop
Brietech writes "Ever felt like building your own laptop from (almost literally) scratch? This is a microcontroller-based "laptop" built from the ground up from a handful of chips and other hardware found lying around. It runs a self-hosted development environment, allowing the user to write and edit programs in "Chris++" on the machine, and then compile and run them. The carpentry looks like it could use some work, but it's a neat project!"
(Yawn...) Go find the 8052-BASIC code on the net, program it into a modern '51 variant like a DS89C450 or AT89C51ED2, attach a serial LCD & keyboard, and you've got way more than 256 lines a second execution speed...