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Backdoor
An alternative way of gaining access to a computer system. A back door entry might be a programmed secret access into the system unknown to routine users of the system.
BASIC
Beginner''s All-purpose Symbolic Instruction Code. A programming language invented in the 1960s for teaching purposes. Since then, BASIC has evolved into a powerful language often used by professionals. Visual Basic is currently the most popular version.
Bezier
A curved line defined by at least three adjustable points. The shape of the curve can be altered by tweaking the handles extending from each point.
Bidirectional
The ability to transmit data in two directions. Contemporary parallel ports are bi-directional because of their ability to communicate with printers as well as disk drivers.
BIOS
Basic Input Output System. software built into the system motherboard which enables the Operating System to communicate with the system hardware.
BIT
A contraction of "binary digit". The smallest unit of information that a computer can hold. Eight bits is equivalent to one byte. The speed at which bits are transmitted, or bit rate, is usually expressed as bits per second or bps.
Bitmap
A graphic image (file extension .bmp) represented by rows and columns of dots. Each dot''s value is stored in one or more bits of data, and the more bits used to represent a dot, the more colours and shades of grey that can be represented in the image.
Boot
Starting up an operating system. If the computer is already running, it is called rebooting.
Browser
A class of programs which enable you to connect to and view web pages. Microsoft Internet Explorer is the web browser most frequently used.
Bug
A mistake in the design of something, especially software which may cause unexpected results.
Byte
One Byte equals 8 bits. One byte represents a character in the alphabet.