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Hard Drive Evolution
Part 1 of Paper
....today's standards, was a necessity. As early as the mid-1800s, punch cards were used to provide input to early calculators and other machines. The 1940s ushered in the decade when vacuum tubes were used for storage until, finally, tape drives started to replace punch cards in the early 1950s. Only a couple of years lat.... Part 2 of Paper
....r.
The first PCs used removable floppy disks as storage devices almost exclusively. The term "floppy" accurately fit the earliest 8-inch PC diskettes and the 5.25-inch diskettes that succeeded them. The inner disk that holds the data usually is made of Mylar and coated with a magnetic oxide, and the outer, plastic cover, bends easily. The inner disk of today’s smaller, 3.5-inch floppies is similarly constructed, but they are housed in a rigid plastic case, which is much more durable than .... |
| Number of words: 988 - Approximate pages: 4 |
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