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H
hard disk
A rigid magnetic storage device that provides fast access to
stored data.
hardware
The electrical and mechanical parts from which a computer
is made.
hertz
(Hz) A unit of frequency equal to one cycle per second.
hot key
Combination of two or three keys (such as
you press simultaneously for a particular function.
I
input/output
(I/O) The process of transferring data between the computer
and external devices.
IDE
Intelligent Drive Electronics. A hard disk drive type that has
controller electronics built into the drive and delivers high
throughput.
interface
A connection that enables two devices to communicate.
interrupt
A special control signal from an I/O device that diverts
the attention of the microprocessor from the program to a
special address.
K
kilobyte
(KB) 1024 bytes.
) that
Ctrl-Alt-D
Glossary-5
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