Yes, I had an Acorn Electron (a BBC Micro-compatible), and the software came on audio cassettes and were sometimes taped to the front of computer magazines to share software demos. It was basically a modem that wasn’t hooked up to a telephone. If the tape was getting worn out, you occasionally had to fix it by putting a pencil in one of the gears and winding it a bit tighter. You could copy software with any dual tape deck designed for music.