A computer program made to discover and
destroy all types of computer viruses.
This refers to the amount
of information that can flow thought a connection
between the internet and a computer in a given
period of time. Most home computers connect via
a modem and the public telephone system. This
is the slowest form of connection and a lot of
users now prefer to use the faster service provided
by cable, or DSL connections
A commonly used acronym for
binary digit, the smallest piece of information
a computer can use. A bit is expressed as one
of two values – a 1 or 0, on or off.
The number of bits assigned
to each pixel on a monitor, scanner or image file.
Most systems can now handle 24bit, or up to 16.7million,
colors, In contrast the GIF file format can only
support eight bit color, or 256 different hues.
In web terms: A link to a particular web site,
stored (bookmarked) by a web user for future use
and easy access.
An application that is used
to access the World Wide Web across the Interet.
The most widely used browsers are Micorsoft’s
Inernet Explorer and Netscape’s Navigator.
There are differences between the way that browsers
displays Web pages.
A web browser or web server feature which
stores copies of web pages on a computer's hard
disk.A computer program
that can harm a computer by displaying messages,
deleting files, or even destroying the computer's
To transfer a file from a
remote computer to a local computer. In web terms:
to transfer a file from a web server to a web
The particular method used
to store the digital data that makes up a computer
file. Some file formats like TIFF, JPEG and WAV
can be read by many different programs while others
such as the Photoshop format PSD, are designed
for use with an single piece of softwareSoftware that acts as a security filter
that can restrict types of network communication.
Most often used between an individual computer
(or a LAN) and the Internet.
A text based page description
language used to format documents published on
the World Wide Web and which can be viewed with
An embedded link between text,
pictures, buttons in a web page and other parts
of the site or another website
The entire collection of connected
worldwide networks, including those used solely
for the Web.
Unlike the Internet, this
term refers to an internal or private network.
Web pages can be posted to this internal network
just as easily as if they were posted to the Web.
Large companies often maintain a private Web presence
on their intranet.
A network between computers
in a local area (like inside a building), usually
connected via local cables.
A programming language devised
for creating small applications (‘applets’),
which can be downloaded from a Web server and
used, typically in conjunction with a Web browser
to add dynamic effects such as animations.
to connect a computer to a telephone network Typically
used to connect to the Internet via a telephone
An audio file format used
to compress digital audio files by as much as
100 to 1. Most often used by music sites to give
visitors the best possible sound while still taking
into account the restriction of Web delivery.
Multimedia is a generic term
used to describe any combination of sound, video,
animation, graphics and text incorporated into
a software product or presentation.
A cross-platform format that
allows complex, multifeatured documents to be
created, retaining all text and picture formatting,
then viewed and printed on any computer that has
an appropriate ‘reader’ installed.
Subsidiary software for a
browser or other package that enables it to perform
additional functions, e.g. play sound, movies,
The computer's operating
system like Windows, Linux, or OS X.
proprietary page description language for image
output to laser printers and high-resolution image
A hardware (or software)
system that directs (routes) data transfer to
different computers in a network.
An indexing program that allows
users to input search terms and locate a list
of pages and websites that contain a reference
to the search term
The memory ‘space’
made available by the computer, into which some
or all of an applications code is loaded and remembered
while you work with it. Generally speaking, the
more, the better. Imaging software such as Photoshop
needs up to five times the size of the files that
you are working on to process images.
The primary colors of the
additive colour model used in video technology
computer monitors and for graphics such as for
the Web and multimedia
Some people want to use the
power of their computer to create works of art,
others want to create music, or play games, surf
the web, or play the stock market. Whatever you
want to do with your computer, software is the
key to doing it.
The action of sending multiple
unwelcome messages to a newsgroup or mailing list.
Computer software hidden in a computer with the
purpose of collecting information about the use
of the computer.
The unique address of a page
on the Web comprising in three elements: the protocol
to be used (such as http), the domain name (‘host’),
and the directory name followed by pathnames to
any particular file. URL is the formal term that
refers to the Web address of a specific Website.
Color that will not be changed
when an image is optimized for the Web.
A digital audio file format
that can be integrated into most multimedia and
A global network of computers using the internet
to exchange web documents.
A compressing format for computer files. Commonly
used for compressing files before downloading
over the Internet. ZIP files can be compressed
(ZIPPED) and decompressed (UNZIPPED) using a computer
program like WINZIP.