https://www.theregister.co.uk/2018/07/06/on_call/

On-Call Welcome once more to On-Call, The Register’s attempt to make Fridays tolerable by bringing you fellow readers’ tales of terrifying tech support jobs they somehow survived.

This week, meet “Guy”, who told On-Call he grew up in the golden age of the microcomputer, so by the time he joined his local Army National Guard unit he was familiar with machines like the TRS-80, Ti-99/4A, C-64 and Apple II.