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Glossary
Click
An operation in which a mouse button (right or left button) or the touch pad is pressed once,
quickly, and then released. When this operation is executed twice in quick succession, it is
referred to as a “double click” (
). A click is used when selecting or executing a
program, menu item, or piece of data. Clicking the right button is called “right click”, and
clicking the left button is called “left click”, but generally the term “click” refers to a “left click”.
CODEC – COmpression/
DECompression
A driver (
) or device that compresses and saves large-volume files, like DVD-Video
), and returns the saved data to video or audio format.
Computer Virus
A program that proliferates by spreading an “infection” from one computer to other computers.
Some viruses are highly malicious, destroying computer data, or preventing the computer from
starting up properly. Anti-virus software and other related systems are effective in protecting
computers from viruses. It is also important to execute Windows Updates regularly and to use
the latest Windows Service Packs and correction programs, so that Windows is maintained in
its most recent form.
CPRM
– Content Protection for
Recordable Media
A copyright management technology used when recording digital broadcasts restricted to being
recorded only once onto a DVD-RAM or DVD-RW (VR type) disk using a DVD recorder.
D
DDR SDRAM
Internal devices (
) in a computer execute a variety of operations using a clock
signal that turns on and off repeatedly at fixed intervals. SDRAM (Synchronous DRAM) is a
type of memory that operates in synchronization with this clock cycle (
). DDR
SDRAM (Double-data-rate synchronous DRAM) uses twice the data transmission speed of the
standard SDRAM.
Designed for Microsoft
®
Windows
®
XP logo
This mark is affixed to products that have been certified to meet computer device standards,
tested according to standards defined by Microsoft, and confirmed to enable use of new
functions incorporated into Windows XP.
C
