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Terms
system disk—A diskette that contains the operating system files
needed to start the computer. Any diskette can be formatted as
a system disk. A system disk is also called a "bootable disk" or
a "startup disk." Compare non-system disk.
system prompt—The symbol (in MS-DOS, generally a drive
letter followed by a "greater than" sign) indicating where users
are to enter commands.
T
TFT display—See active-matrix display .
U
universal serial bus (USB)—A serial bus that supports a data
transfer rate of up to 12 Mbps (12 million bits per second). USB
can connect up to 127 peripheral devices through a single all-
purpose USB port. USB allows hot swapping of peripherals.
See also bus, hot swapping, serial.
upload—To send a file to another computer through a modem or
network. See also download .
—See universal serial bus (USB).
USB
utility—A computer program designed to perform a narrowly
focused operation or solve a specific problem. Utilities are often
related to computer system management.
V W
Web—See World Wide Web .
World Wide Web (www)—The worldwide network of Web sites
linked together over the Internet. A user of the Web can jump
from site to site regardless of the location of the computer
hosting the site. See also Internet.
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Part III: Appendixes
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