1. Magnetic Wire Recorder
Instead of recording onto magnetic tape, the wire recorder records onto a strand of stainless steel wire, virtually the thickness of a human hair. The wire recorder had a brief heyday inwards the belatedly 1940's together with people were truly excited virtually what y'all could attain amongst a wire recorder. One of the most pop uses for wire recorders was every bit dictation machines together with Webster-Chicago was the give away ane build making them at the time.
Digital Micro Tape
If y'all are individual who grew upwards inwards early on 2000's you'd belike uncovering difficult to imagine people using mechanical magnetic tapes; particularly given the popularity of electronic storage applied scientific discipline today. The Sony NT Cassette was a digital micro tape format of the early on 1990's that looked real much similar the Picocassette, which was the smallest analogue cassette tape ever made.
If y'all don't yell back ever seeing a cassette changer that would travel because cassette changers weren't largely sold to Blue Planet but used by together with large inwards shops or gyms. Cassette changers came inwards all shapes together with could concord different numbers of cassettes. There were some cassette changers that could concord a massive xx cassettes such every bit the Panasonic RS-296US (pictured below) together with Philips N2401 Cassette Changer, both from the early on 1970's (the Philips N2401 truly held vi cassette tapes inwards a stack formation).
The D-Theater tape format is some other fleck of applied scientific discipline that came out inwards the belatedly 1990's when the starting fourth dimension hard disk drive televisions were launched, inwards the yr 1998. D-Theater was essentially hard disk drive Video on VHS format together with the lineament of this tape format could fifty-fifty compete amongst the likes of BluRay together with hard disk drive DVD.