Electroteach

This HDD DVD TV recorder has a 160 GByte hard disk drive. operating manual

early Arduino screen shot

example address checking

SDR kit
SDR data sheet

Spirograph Wiki

some possible discussion about the use of an incorrectly spelled word

gprbuild

Cortex optimization

Programming Rust

hg is an alternative to git ( as used with Github) and has a few special useful options.

hg annotate main.cpp
hg paths