Magnetic Recording: The First 100 YearsEric D. Daniel, C. Denis Mee, Mark H. Clark Electrical Engineering/History of Technology Magnetic Recording The First 100 Years The first magnetic recording device was demonstrated and patented by the Danish inventor Valdemar Poulsen in 1898. Poulsen made a magnetic recording of his voice on a length of piano wire. Magnetic Recording traces the development of the watershed products and the technical breakthroughs in magnetic recording that took place during the century from Poulsen’s experiment to today’s ubiquitous audio, video, and data recording technologies, including tape recorders, video cassette recorders, and computer hard drives. An international author team brings a unique perspective, drawn from professional experience, to the history of magnetic recording applications. Their key insights shed light on how magnetic recording triumphed over all competing technologies and revolutionized the music, radio, television, and computer industries. They also show how these developments offer opportunities for future applications. Magnetic Recording features 116 illustrations, including 92 photographs of historic magnetic recording machines and their inventors. |
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Page 5
... bit density ) and optical recording ( high track density ) is a possibility . The third prediction is that competition to magnetic recording from optical disk recording will continue to occur in certain areas . So far optical recording ...
... bit density ) and optical recording ( high track density ) is a possibility . The third prediction is that competition to magnetic recording from optical disk recording will continue to occur in certain areas . So far optical recording ...
Page 241
... binary digits ( bits ) were completely resolved at a bit density of 80 pulses per inch . These experimental observations were the basis for the de- velopment and production of magnetic drums using fixed , noncontact heads for data storage ...
... binary digits ( bits ) were completely resolved at a bit density of 80 pulses per inch . These experimental observations were the basis for the de- velopment and production of magnetic drums using fixed , noncontact heads for data storage ...
Page 260
... bit density achievable was reduced . IMPROVEMENTS IN HALF - INCH TAPE SYSTEMS The original IBM 726 and 727 systems using 10.5 - inch reels and 0.5 - inch tape became de facto standards for commercial and scientific computer systems . Nu ...
... bit density achievable was reduced . IMPROVEMENTS IN HALF - INCH TAPE SYSTEMS The original IBM 726 and 727 systems using 10.5 - inch reels and 0.5 - inch tape became de facto standards for commercial and scientific computer systems . Nu ...
Contents
AUDIO RECORDING | 6 |
The Telegraphone | 15 |
Steel Tape and Wire Recorders | 30 |
Copyright | |
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Magnetic Recording: The First 100 Years Eric D. Daniel,C. Denis Mee,Mark H. Clark Limited preview - 1998 |
Common terms and phrases
ac bias Ampex analog applications areal density audio recording b/in bandwidth BASF bit density broadcast capacity capstan cartridge channel coating color compact cassette consumer cost Courtesy of IBM data rate data recording data storage developed device diameter digital audio digital recording digital video recording disk drive disk surface diskette early electronic engineers equipment error ferrite Figure film frequency hard disk helical-scan improved inches industry instrumentation recorder Jack Mullin Japan laboratory machine magnetic disk magnetic drum magnetic recording magnetic tape Magnetophon manufacturers Mb/s mechanism memory Model modulation operation Panasonic performance personal computer playback Poulsen production quadruplex radio RAMAC read/write recording format recording medium recording system recording technology reel rotating slider SMPTE Sony sound standard stored t/in tape drive tape systems Telegraphone television tion track density United video cassette recorder video signal video tape recorder wire