HP Compaq Presario, Руководство пользователя

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G
LOSSARY
18 M
Y
P
RESARIO
—L
EARNING
M
ORE
the arrows to scroll the information into
view. See click .
scroll mouse
A mouse with a scroll wheel
(between the two mouse buttons) for
automatic scrolling through long
documents or Web pages. See scroll and
mouse .
search engine
A program, accessed on
the Internet, that allows you to search large
databases for information by using
keywords or phrases. See database .
sector
The smallest recordable unit on a
CD. A CD can contain [(75 sectors per
second) x (60 seconds per minute) x
(number of minutes on a CD)] sectors. The
amount of data contained in the sector
depends on the physical format in which it
is recorded; for “regular” CD-ROM data,
you can fit 2048 bytes (2 kilobytes) of data
into a sector.
secure Web site
A Web site that encrypts
data to protect it from unauthorized use.
When you purchase items over the
Internet, you are asked to type your name,
mailing address, e-mail address, and credit
card information on an electronic form.
Sending information to a secure Web site is
comparable to giving it over the telephone
when you order from a catalog. (Never
send your social security number over the
Internet. Criminals can steal your identity
with your social security number.) See
encrypt .
sequential erase
Erasing the entire CD so
that it can be re-used. (Available with
CD-RW CDs).
serial port
A small connector on the back
of the computer (or keyboard) for plugging
in a thin cable attached to a serial device,
such as a mouse. Serial devices transfer
data one bit at a time through a data wire.
The serial cable has two wires for
bi-directional communication (sending and
receiving information simultaneously). See
bit . See also parallel port .
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.