A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
Something nostalgic: QP/M is a time/date stamping and speedy CP/M 2.2 replacement that fits in the same memory space.
QP/M was developed by MICROCode Consulting back in the 80's. Today is still alive and completely free for personal use. It features:
# automatic time/date stamping of files using your computer's clock
# selectable common drive/user area with built-in program search
# faster disk throughput than CP/M 2.x BDOS
# powerful new transient commands and system calls in CCP
# automatic disk re-logging
# multiple commands per line
# completely replaces BDOS and CCP
# 100% compatibility with CP/M 2.2 residing in same space
# written in optimized Z-80 code
Read more and download at