Computer Science (from 2021) 9618: Information Representation Topical Past Paper Questions
Cambridge AS & A Level Computer Science (from 2021) (9618) past-paper questions on Information 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
(a) Draw one or more lines to match each denary number with its equivalent unsigned binary, hexadecimal or Binary Coded Decimal (BCD) value(s). Denary number Equivalent unsigned value Hexadecimal: 121 BCD: 00010101100001010001 Binary: 110000110000 Hexadecimal: 57F4 Binary: 111101…
(e) The table contains three algorithms that perform data validation. The third algorithm uses the functions MID and LENGTH. The functions MID and LENGTH are defined as follows: MID(ThisString : STRING, x : INTEGER, y : INTEGER) RETURNS STRING returns a string of length y startin…
Numbers are stored in a computer using binary floating-point representation with: - 10 bits for the mantissa - 6 bits for the exponent two's complement form for both the mantissa and the exponent. (a) Calculate the normalised binary floating-point representation of +201.125 in th…
Sign in required
Full Information Representation question set, mark schemes and AI worksheets
Log in for the full topic-segregated question set, mark schemes, and AI worksheets built from every Computer Science (from 2021) past paper. New accounts start with 25 free credits.
Explore all Computer Science (from 2021) topics
All Computer Science (from 2021) topics