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Glossary
U
universal serial bus (USB) — USB is a serial bus that supports a data
transfer rate of up to 480 Mbps (480 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.
USB — See universal serial bus (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.
W
Web — See World Wide Web.
Wi-Fi
®
— A registered trademark term of the Wi-Fi Alliance that stands
for Wireless Fidelity, and is another term for the communication
protocol to permit an Ethernet connection using wireless
communication components.
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.