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Magnetic Tape Selectric Composer

In 1967, IBM announced the IBM Magnetic Tape Selectric Composer. Documents could be typed and recorded on magnetic tape, and then later played back justified. At the same time, IBM was producing the IBM Magnetic Tape Selectric Typewriter, one of the earliest attempts at turning the regular Selectric typewriter into a word processor. The Tape Selectric units could be used to record raw text onto magnetic tape, after which the tape could be played back in the IBM Magnetic Tape Composer for justification. The Magnetic Tape Selectric Composer is often referred to as the IBM MT/SC.

In the following brochure cover, you can see that IBM has positioned two Mag Tape Selectrics in the background as text entry stations, and the Mag Tape Selectric Composer in the foreground for composition playback.