AQA A Level Computer Science Key Terms Exam And Correct Answers 2024.

Absolute Error - Answer The difference between the actual number and the nearest representable value. Abstract data type (ADT) - Answer A data type whose properties are specified independently of any particular programming language. Abstraction - Answer Representation that is arrived at by removing unnecessary details. Aggregation - Answer Relationship between two object types in which one object type has a component which is of the other type. Ajax - Answer Web technology that allows only the part of a web page that needs updating to be fetched from the web server. Algorithm - Answer A sequence of unambiguous instructions for solving a problem. It can be represented as a Turing machine program. Application programming interface (API) - Answer A layer of software that allows application programs to call on the services of the operating system. Association - Answer If the relationship is not inheritance and it is not aggregation then it is an association. Asymptotic behaviour of f - Answer It is the behaviour of the function f(n) for very large values of n. Asynchronous serial data transmission - Answer Transmission system in which the sender and receiver have separate clocks which are not kept synchronised. Instead, the clocks are synchronised temporarily at the start of a transmission. The arrival of data cannot be predicted by the receiver; s a start bit is used to signal the arrival of data and to synchronise the transmitter and receiver temporarily.