Inserting a 5. 25-inch floppy disk into a micropolis 1053 i metafloppy floppy-disk drive. That's the sliding sound at the beginning. The second knock-knock type of sound is the press-down-and-hook drive latch being closed. The micropolis 1053 is a two-drives unit for s-100 bus early computers. This sound was recorded on the upper floppy-drive.
Mono recording of a cast iron gate to a courtyard garden in the abbey gardens, bury st edmunds, suffolk. Recorded using a shotgun mic into a zoom h4 recorder. Distant sounds of traffic and light winds.
Inserting a large 8-inch floppy-disk into a shugart floppy disk drive and closing the plastic front bezel drive latch. Noisy recording with the fan of the enclosure and neighboring system humming along.