A-Level AQA Computer Science Paper 2 with Complete Solution

Examples: square root of 2, PI. Real (Number) - - Any number that can either be rational or irrational. Boolean - - A value that is either true or false. String - - A series of characters. Array - - A variable that can store multiple values of the same data type. Example: Storing the high-scores of a game as integers. Record - - A variable that can store multiple values that can have different data types. Example: Storing data about a book; a string for the title, an integer for the number of pages, etc. Variable - - A metaphor for it is that is a box that can store a specific type of item (the data type) and has a name assigned to it (the identifier). Its value can be changed during run-time of the program. Constant - - A metaphor for it is that is a box that can store a specific type of item (the data type) and has a name assigned to it (the identifier). Its value cannot be changed during run-time of the program. Subroutine - - This can be