248 Glossary

Terms

T

U

WV

system prompt — The symbol (in MS-DOS, generally a drive letter followed by a “greater than” sign) indicating where users are to enter commands.

TFT display — See active-matrix display.

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.

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.

Web — See World Wide Web.

Wi-Fi— A trademarked term by the Wireless Capability Ethernet Alliance which stands for Wireless Fidelity. Wi-Fi is another term for the IEEE 802.11b 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.