Science and Technology

27 January—On this day

Posted on: Wed 27 Jan 2021

On this day in 1948 the first tape recorder was sold, making it possible for people to use a compact, handheld device built to capture moments in time.

The tape recorder converts audio signals into magnetic energy, imprinting a record of the signal onto a moving tape, covered in magnetic particles.

Editing was achieved by physically cutting part of the tape using a razor blade.

Digital surfaced in the 70s and eventually overtook tapes, due to the convenience and versatility with editing.

Produced by Kate Johnson

Image source: Wikimedia


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