G
H
hard copy: the permanent readable copy of a computer output. (2-lb)
hard disk (disk): a storage medium that is faster and has more memory capacity than
a floppy disk; holds 20 megabytes or more of data; and costs more than a floppy disk.
(2-6b(3)(a))
hardware: the physical apparatus of a computer system. (2-1)
I
information: data arranged in useful ordered form; the output of manipulated data. (1-
12d)
*information theory: the application of mathematics to language, concepts,
processes, and problems in the field of communications. (1-4d)
input-output devices: machines that provide a vehicle for communication between
different computer systems or between people and computers (also known as
peripherals). (2-7a)
integrated circuit: electronic circuit whose components are etched on a single piece of
semiconductor material, usually a silicon chip, less than 1/8 inch square; permits faster,
cheaper processing than with transistors. (1-20) & (3-20c(3))
J
screens electronics. (3-21b(7))
K
K (kilobyte): RAM and disk capacity are measured in kilobytes,
1K being the equivalent of 1,024 bytes.(2-6b(3)(c))
MD0057
G-4
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