MyCPU – Homebrew Computer from Discrete Logic Gates

The MyCPU Emulator works great under Linux and feels much more realistic than the MS Windows version. The system runs with up to 8 MHz available hardware: 8 Bit CPU at 8 MHz (the “MyCPU”), 1.03 MB RAM / 128 KB ROM, Interrupt Controller, Multi-I/O with 2 serial ports, 1 printer port, LCD and PS/2-Keyboard interface, IDE-Controller for 4 harddisks, VGA graphic card, Ethernet Controller. The realtime operating system “pico]OS” has been ported to the MyCPU.

Source: mycpu.thtec.org