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Learning More About Your Computer 5–29
Understanding Computer Terms
server
A computer with a large hard drive that serves (provides information
to) other computers connected to it on a network. In a local area
network, several computers in the same room or all the computers in a
high-rise office building may be connected to a server. The server
stores everyone’s files. The Internet is the largest computer network in
the world. It is a network of servers. When you send or receive e-mail,
it travels through a series of servers to which both the sender’s and
receiver’s computer are connected through a modem. When you enter
a Web site address in the address box of your browser, Internet
protocol commands the Web server to locate the site you requested,
transmit the files to your computer, and display them on your monitor.
session
As defined in the Orange Book, a recorded segment of a CD that may
contain one or more tracks of any type (data or audio). In data
recording, there is usually only one track per session. In audio
recording, all audio tracks are contained in a single session. A lead-in
and lead-out are recorded for every session on a CD.
session-at-once
Session-at-once is a subset of disc-at-once, used for CD Extra. In
session-at-once recording, a first session containing multiple audio
tracks is recorded in a single pass; the laser is then turned off, but the
CD is not closed. A second (data) session is then written and the CD
is closed.
shareware
Software you can try before you buy. After a trial period, usually 30
days, the program either uninstalls or refuses you access unless you
pay for it. You can download shareware from the Internet. See
software.