MIDI - Musical Instrument Digital Interface
Definition and history of MIDI; types of MIDI devices i.e. transmitters (controllers), receivers (sound modules - aka tone generators), recorders (sequencers)

MIDI protocol e.g. fundamentals such as MIDI channel specifications, cables and MIDI support devices i.e. converters, thru box, synthesizers

The Computer
CPU, Storage devices, peripherals, communication protocols, i.e. iLink, USB 2.0

Software
Operating systems (Windows, OS10), and Applications Software