A PC’s serial port provides signal lines that you can use to expand the number of input signals. With some additional circuitry tied to these lines, you can use the port to test digital TTL ...

This is an introduction to the Virtual Serial Port Driver by Eltima Software. They have offered an opportunity to the ElectroSchematics team to put the software through its paces. T.K. Hareendran will ...

Modern operating systems insulate us — as programmers, especially — from so much work. Depending on how far back you go, programmers had to manage their own fonts, their own allocation space on mass ...