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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 rectangular ho ....
Middle of paper
....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 composed of thin layers of rigid magnetic platters stacked on top of one
another like records in a jukebox, and the heads that read and write data
to the spinning platters resemble the arm of a record .... |
| Word count: 791 |
Page count: 3 |
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