Computer Science (from 2021) 9618: Data Representation Topical Past Paper Questions
Cambridge AS & A Level Computer Science (from 2021) (9618) past-paper questions on Data Representation, free. This topic is frequently examined across 10 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Numbers are stored in a computer system using binary floating-point representation with: - 12 bits for the mantissa 4 bits for the exponent two's complement form for both the mantissa and the exponent. (a) Calculate the normalised binary floating-point representation of -18.5625…
Numbers are stored in a computer system using binary floating-point representation with: - 12 bits for the mantissa 4 bits for the exponent two's complement form for both the mantissa and the exponent - 2 bytes in total. (a) Outline the effect of changing the number of bits used…
Several syntax diagrams are shown. (a) State why each number is invalid for the given syntax diagrams. 21 Reason ..... 123 Reason ..... [2] (b) Complete the Backus-Naur Form (BNF) for the given syntax diagrams. ::= ..... ::= ..... [2] (c) A new syntax rule, code, is required. It…
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