[ck2]

I have a single-sided 8-inch floppy disk somewhere

I think it held 160K

But also TRS-80 cassette tape which would be oldest computer medium I have

You would have to save things half a dozen times because most would not load later

It made me realize I could "save" dial-up computer terminal connections to cassette and play them back later (300 baud was very forgiving)