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Data Storage Devices
Beginning of paper
Even before the first computer was conceptualized, data had already been
stored on hard copy medium and used with a machine. As early as 1801, the
punched card was used as a control device for mechanical looms. One and
one-half centuries later, IBM joined punched cards to computers, encoding
binary information as patterns of small rect .... Middle of paper
.... the
magnetic tape drive. Magnetic tape is a sequential data storage medium. To
read data, a tape drive must wind through the spool of tape to the exact
location of the desired information. To write, the tape drive encodes data
sequentially on the tape. Because tape drives cannot randomly access or
write data like disk drives, and are thus much slower, they have been
replaced as the primary storage device with the hard drive. The hard drive
is c ....
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Number of words: 791
Number of pages: 3 (approx. 250 words per double-spaced page)
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