IBM 729
The IBM 729 Magnetic Tape Unit was IBM's iconic tape mass storage system from the late 1950s through the mid-1960s. Part of the IBM 7 track family of tape units, it was used on late 700, most 7000 and many 1400 series computers. Like its predecessor, the IBM 727 and many successors, the 729 used 1/2 inch (12.7 mm) magnetic tape up to 2400 feet (730 m) long wound on reels up to 10½ inch (267 mm) diameter. To allow rapid tape acceleration (and thus reduced seek/access times), long vacuum columns were placed between the tape reels and the read/write heads to absorb sudden increases in tape tension which would otherwise break the tape. Write protection was provided by a removable plastic ring in the back of the tape reel.
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IBM 729
The IBM 729 Magnetic Tape Unit was IBM's iconic tape mass storage system from the late 1950s through the mid-1960s. Part of the IBM 7 track family of tape units, it was used on late 700, most 7000 and many 1400 series computers. Like its predecessor, the IBM 727 and many successors, the 729 used 1/2 inch (12.7 mm) magnetic tape up to 2400 feet (730 m) long wound on reels up to 10½ inch (267 mm) diameter. To allow rapid tape acceleration (and thus reduced seek/access times), long vacuum columns were placed between the tape reels and the read/write heads to absorb sudden increases in tape tension which would otherwise break the tape. Write protection was provided by a removable plastic ring in the back of the tape reel.
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Die Magnetbandeinheit IBM 729 ...... ng an der Rückseite der Rolle.
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IBM 729 Magnetic Tape Unit — 7 ...... ця на зворотному боці котушки.
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La Unidad de Cinta Magnética I ...... cabezas de lectura/escritura.
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The IBM 729 Magnetic Tape Unit ...... in the back of the tape reel.
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Die Magnetbandeinheit IBM 729 ...... unststoffring an der Rückseite
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IBM 729 Magnetic Tape Unit — 7 ...... ця на зворотному боці котушки.
@uk
La Unidad de Cinta Magnética I ...... cabezas de lectura/escritura.
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The IBM 729 Magnetic Tape Unit ...... in the back of the tape reel.
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IBM 729
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IBM 729
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IBM 729
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IBM 729
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