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Chapter B
Subsidiary Information
■
Terminology
Application software
Software which is run by users on an OS. Typical
are word processing software, spreadsheet program,
painting software, etc.
CD-ROM (Compact Disk Read-Only
Memory)
Large-capacity read-only memory. A compact disc
in which files are stored. It is possible to read data
at high speed.
CPU (Central Processing Unit)
A component that is the center of computer. It re-
ceives data from an input device, computes and
stores it, then transfers resultant data to an output
device.
Driver software
Software which provides OS with a specified de-
vice. Once installed, user need not be concerned
about use.
ECP (Extended Capabilities Port)
The parallel port of IBM PC/ AT compatible ma-
chines. It has parallel interface specifications which
support bi-directional input/output.
Hard disk
Conventionally, a fixed storage of personal com-
puter. Although it is not as handy as a floppy disk
or MO disk, it can store mass data at high speed.
Recently, detachable and card type hard disks has
been marketed.
Homepage
Introduction for information to be provided on
Internet, which can be created using still pictures,
audio and moving pictures.
ISA (Industry Standard Architecture)
16-bit bus interface standard used with IBM PC/
AT compatible machines.
Initialization
A task done so that hard disk, MO disk, floppy disk,
etc. can be used with personal computers. This is
also referred to as formatting.
Internet
More advanced network of computer networks. In
this system, computers in the world are connected
to one network.
JPEG (Joint Photographic coding Expe'rts
Group)
One of the national standards for color still picture
compression system. This system has become popu-
lar worldwide and is used to create Internet
homepage, etc. The file extension is generally ".jpg".
MO disk (Magnetic Optical disk)
A storage medium, from/to which data is read and
written using the magnet-optical system. It is able
to store much more data.
MPEG 1 (Moving Picture Experts Group 1)
One of the international standards for color moving pic-
ture compression system. This is one of the most effi-
cient moving picture compression systems, as of Feb-
ruary, 1997. AnMPEG 1 decodinghardwareorMPEG
1 decoding software is necessary to play back pictures.
The file extension is generally ".mpg".
Multimedia Contents
Electronic publications configured by various types
of data, including characters, moving pictures, still
pictures, audio, etc.
OS (Operating System)
Software that manages other programs, data, hard-
ware, etc., to process the task given to computer.
PC card
A credit-card sized card that can be easily inserted
into personal computer from outside. PC card is the
formal name for cards conforming to the PCMCIA
(personal computer memory card international as-
sociation) standard. PC cards are divided into type
I, II and III, depending on their thickness.
Pentium
The 32-bit CPU developed by Intel Corporation.
RAM (Random Access Memory)
The memory, from/to which data can be read and
written at random.
Thumbnail
A small still picture, used with many types of image
indexing software.
Windows® 95 (Microsoft® Windows® 95
Operating System)
The OS developed by Microsoft Corporation, which
is very popular as an OS for personal computers.
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