The first technical book I ever bought, 35 or 36 years ago, was The RS-232 Solution. I was doing tech support in those days for an outfit that sold systems buil

The first technical book I ever bought, 35 or 36 years ago, was The RS-232 Solution. I was doing tech support in those days for an outfit that sold systems built on similar but not identical gear, and reading that book considerably increased my efficiency.