cxc syllabus glossary- this is a guide to the main word needed to
GLOSSARY
WORD
DEFINITION
Address
The identification of a particular location in memory where a data item
or instruction is stored.
Algorithm
A sequence of instructions which rigorously defines a solution to a
problem.
Antiglare screen
A polarized screen attached to the front of the monitor, which reduces
eye strain.
Assembler
A program which converts
ASSEMBLY
LANGUAGE into MACHINE
CODE to be used by a computer.
Automation
Computer control of machines and processes.
Backing storage
Memory external to the computer used for storage of large quantities of
data or large programs. Backing store is also known as secondary store,
auxiliary store or external store.
Bandwidth
A characteristic of a communication channel that determines the speed
at which data can be transmitted over the channel.
Bar code
A series of thick and thin black bars separated by spaces of varying
widths representing data.
Baud
A unit of speed in data transmission system which now represents one
data signal per second.
BCD
BCD is an abbreviation for Binary-Coded-Decimal. In this number
system, each digit of a number is written as a BINARY number, rather
than converting the whole number. For example, 47 would be coded as
01000111, the binary codes for 4 and 7. Contrast this with 101111,
which is the true binary code of 47.
Bistable device
A device which can exist in two discrete stable states.
Bit
An acronym for binary digit. It can have a value of 1 or 0.
Blog
Short for "Web log". A blog is an online journal or diary of an individual’s
opinions and latest news. It is updated regularly, in chronological order. Many
blogs allow visitors to make comments, or “postings” in response to the blogger, or
to ask questions.
CXC 30/G/SYLL 08 47
WORD DEFINITION
Broadband A term used to describe a technology that provides bandwidth that is greater
WORD
DEFINITION
Address
The identification of a particular location in memory where a data item
or instruction is stored.
Algorithm
A sequence of instructions which rigorously defines a solution to a
problem.
Antiglare screen
A polarized screen attached to the front of the monitor, which reduces
eye strain.
Assembler
A program which converts
ASSEMBLY
LANGUAGE into MACHINE
CODE to be used by a computer.
Automation
Computer control of machines and processes.
Backing storage
Memory external to the computer used for storage of large quantities of
data or large programs. Backing store is also known as secondary store,
auxiliary store or external store.
Bandwidth
A characteristic of a communication channel that determines the speed
at which data can be transmitted over the channel.
Bar code
A series of thick and thin black bars separated by spaces of varying
widths representing data.
Baud
A unit of speed in data transmission system which now represents one
data signal per second.
BCD
BCD is an abbreviation for Binary-Coded-Decimal. In this number
system, each digit of a number is written as a BINARY number, rather
than converting the whole number. For example, 47 would be coded as
01000111, the binary codes for 4 and 7. Contrast this with 101111,
which is the true binary code of 47.
Bistable device
A device which can exist in two discrete stable states.
Bit
An acronym for binary digit. It can have a value of 1 or 0.
Blog
Short for "Web log". A blog is an online journal or diary of an individual’s
opinions and latest news. It is updated regularly, in chronological order. Many
blogs allow visitors to make comments, or “postings” in response to the blogger, or
to ask questions.
CXC 30/G/SYLL 08 47
WORD DEFINITION
Broadband A term used to describe a technology that provides bandwidth that is greater