Computer Studies Glossary P1

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Access rights
Permissions given to a user to control access to files.
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Actuator
Device used by a computer to move machinery in a control system.
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Adware
Software that displays adverts on the user's computer.
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Algorithm
A sequence of steps to solve a problem.
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Alphanumeric string
A strong of alphabetic letters and numerals only, such as name, phone number or product code.
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Analogue data
Real-world data that smoothly model even small changes, such as output from a temperature sensor.
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Analogue-to-digital converter (ADC)
Devices that changes analogue data to digital data so that they an be processed by a computer system.
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Anti-virus software
Software that identifies computer viruses and deals with them by now allowing them access to files or by erasing them.
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Application software
Programs that allow people to use the computer to perform a specific task.
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Array
Data structure that stores items of a single type that can be referred to by one or more indices or subscripts.
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Artificial intelligence
The facility within some expert systems that enables them to modify their knowledge and rules bases so that they can learn from experience.
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Assembler
Software which is used to translate the instructions written in an assembly language into the computer's machine code.
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Assembly language
A low-level language which uses short words and abbreviations as mnemonics for machine code instructions.
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Attribute
A specific type of data representing a particular characteristic of each data record. Also known as field or column.
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Authoring package
See Multimedia authoring program and Web authoring program.
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Automated system
A system that carries out control tasks with limited interactivity.
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Automated teller machine (ATM)
A 'cash-point' machine used to withdraw cash or manage a bank account.
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Automatic data capture
The use of automated devices and methods for data input without human intercention.
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Automatic stock control system
A computerised system that records sales and deliveries and automatically reorders fresh stock.
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Auxiliary storage
See Backing storage.
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Other cards in this set

Card 2

Front

Device used by a computer to move machinery in a control system.

Back

Actuator

Card 3

Front

Software that displays adverts on the user's computer.

Back

Preview of the back of card 3

Card 4

Front

A sequence of steps to solve a problem.

Back

Preview of the back of card 4

Card 5

Front

A strong of alphabetic letters and numerals only, such as name, phone number or product code.

Back

Preview of the back of card 5
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