I still have some 5.25-inch disks, both on an old IBM AT and an even older CP/M system (different formats, of course).

I have none left myself, but I well remember using 8-inch floppies and loading programs from 1-inch paper tape via the reader on an ASR33 teletype. I must be getting old! [Linked Image]

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I also have an audio tape recorder, I dunno what it is called. It had 2 large disks, round, and you had to lead the tape in front of the head, and fix it on the other disc.
I think you're probably talking about a reel-to-reel tape recorder with standard 1/4-inch tape. There were multiple tape speeds and several different formats for the tape for single/double/quad track, mono or stereo.