How is data stored electronically and by what method?
Date Submitted: 09/10/2006 04:01:23
Category: / History / European History
Length: 3 pages (759 words)
Category: / History / European History
Length: 3 pages (759 words)
Definitions of storage:
The number of instructions and amount of data a computer can store in its memory is measured in bytes. One byte contains 8 bits (short for binary digits, 0 and 1). Computers work by using pulses of voltage which represent either 0 or 1. Low voltages represent 0, high voltages represent 1. 8 bits are normally needed to store one character. A single character can be stored in one byte. We normally refer to storage capacities in terms of kilobytes (…
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…CD-ROM drives:
CD-ROM drives use the same technology as music CDs and CD players. The data is stored on the disk digitally and a laser beam is used to read the data off the disk. CD-ROMs can be filled with clip art, encyclopaedias, photographs, and all sorts of reference material. CD-ROMs are read-only disks, which mean that you can read the data off the disk but not store new data or alter the existing data.
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