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Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Computational model
A model run on a computer to apply rules or calculations and explore possible outcomes.
Computational model
A model implemented using computer code so that many calculations or simulations can be carried out efficiently.
Computational model
A model run by a computer to apply rules and calculations, often repeatedly or to many interacting parts.
Computational model
A model that uses a computer to apply rules or equations to input data and calculate possible outcomes.
Computational thinking
An approach to solving problems by identifying essential features, breaking problems into manageable parts and developing precise instructions that can be implemented by a computer.
Computer-aided design (CAD)
The use of computer software to create and alter digital designs of products, often as two-dimensional drawings or three-dimensional models.
Computer-aided design (CAD)
The use of specialist computer software to create, edit and develop product designs.
Computer-aided manufacture
The use of computer-controlled equipment to carry out manufacturing operations.
Computer-aided manufacture (CAM)
The use of computer-controlled machines and digital design data to manufacture parts, prototypes or finished products.
Computer-aided manufacturing (CAM)
The use of computers to control machines and assist manufacturing operations.
Computer-aided manufacturing (CAM)
The use of computer-controlled equipment to manufacture parts from digital design information.
Computer-generated imagery (CGI)
Imagery created using computers. It can be combined with live-action footage.
Computer-generated imagery (CGI)
Images created using computers, including digitally generated characters, objects and environments.
Computer Misuse Act 1990
UK legislation that prohibits unauthorised access to computer material and other forms of computer misuse.
Computer network
A group of connected devices that can exchange data.
Computer numerical control (CNC)
The control of a machine's movements and operations using programmed numerical instructions.
Computer program
A set of instructions written in a programming language to carry out a task, implementing one or more algorithms.
Computer system
A combination of hardware and software working together.
Computer virus
Malware that replicates by inserting copies of itself into other files or programs and can spread when infected files are transferred and run.
Computing standard
An agreed set of rules or guidelines for an area of computing that enables hardware or software made by different producers to work together.
Comrade
A companion who shares an activity or danger, especially a fellow soldier.
Comradeship
Loyalty, mutual support and shared responsibility between people who fight together.
Concatenation
Joining two or more strings in order to produce a new string.
Concave lens
A lens that is thinner in the middle than at the edges and spreads out, or diverges, light rays.
Concave lens
A lens that spreads rays travelling parallel to its principal axis apart.
Conceit
An imagined premise that a reader is invited to accept so that a work can explore its ideas.
Concentrated
Describes a solution containing a relatively large amount of dissolved substance for its volume.
Concentrated
Describes a solution containing a relatively large amount of dissolved substance per unit volume.
Concentrated acid
An acid solution containing a relatively large amount of acid per unit volume.
Concentrated acid
An acid solution containing a relatively large amount of acid in a given volume of solution.
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