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P
RESARIO
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OTEBOOK
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EYOND
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ET
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UP
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UIDE
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LOSSARY
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1200 S
ERIES
modem A device in the computer that
converts data from digital format to
analogue format so that it can be
transferred through a standard telephone
line to another computer. The modem in
the receiving computer converts the data
back to digital format. See
digital .
mouse
A device that you move across the
top of your desk (or a mouse pad) to move
the pointer or cursor on the screen. Click to
select an item, double-click to launch a
programme, and right-click to see a
shortcut menu.
mouse pointer The arrow on the screen
that moves with the mouse.
MP3 The file extension for MPEG, audio
layer 3, sound files. This format com-
presses sound data from a stereo music CD
to one-half of its original size without sac-
rificing sound quality. Because of their
small size, MP3 files can easily be trans-
ferred over the Internet. You can download
individual songs or entire CDs in MP3 for-
mat to your computer. The format is easily
identified by the file extension .
mp3 .
multimedia
Two or more media formats
used together, such as text, graphics,
animation, audio, or video.
music software Programmes for com-
posing and editing music. When you play a
tune on a synthesiser keyboard connected
to a computer, the music programme trans-
lates what you play into a written score
N
navigate
To move through a Web site or
online document by clicking on the
hyperlinks embedded in the text or images.
See
hyperlink .
Netscape Navigator A Web
browser developed by the Netscape
Communications Corporation.
See
browser .
network Two or more computers linked
together to share resources, such as
programmes, files, and printers.
network interface card (NIC)
An
expansion card or other device used to con-
nect a computer to a local area network.
newsgroup A discussion group on the
Internet where people can post or read
messages on thousands of topics, such as
professional basketball, environmental
protection, and Himalayan cats.
newsreader A programme that lets you
read and post messages to newsgroups.