We have occasionally featured vacuum tube computers here at Hackaday and we’ve brought you many single board computers, but until now it’s probable we haven’t brought you a machine that combined both ...

8051 8-bit MCU @ 25 to 300 MHz with 8K SRAM The way the Sophgo SG2000 chip works, you can select to use either the 1 GHz RISC-V core or the 1 GHz ARM core, but you cannot use both at the same time.

When you think of compact, single-board computers, most casual and even intermediate tech hobbyists will likely think of the Raspberry Pi. Although it isn't the only great single-board computer ...