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Computer Science 9618/31 Oct Nov 2023 | Cambridge AS Level Past Papers With Mark Scheme

1. Floating-point representation with 12-bit mantissa, 4-bit exponent, and two’s complement form for both; tasks include representing and analyzing storage limitations.
2. Matching protocols like HTTP, SMTP, and IMAP with their appropriate uses and explaining the TCP/IP Link layer purpose.
3. Definitions and comparisons of enumerated and pointer data types.
4. Sequential and random file organization with sequential access processes for serial and sequential files.
5. Characteristics of SISD and MIMD computer architectures in computational processing.
6. Boolean algebra simplifications and completing truth tables for logic circuits.
7. Benefits and examples of user interfaces, process state transitions, and conditions for changing process states.
8. Pseudocode tasks involving hash-based file handling for random file access and exception handling scenarios.
9. Reverse Polish Notation (RPN) evaluation, including infix expression conversion, stack operations, and step-by-step processing.
10. Stack operations, including pseudocode for `Pop()` functionality and comparisons of stack and queue ADTs.
11. Declarative programming tasks representing student-subject relationships, deriving logical outcomes, and defining rules.
12. Explanation of artificial neural networks and their significance in machine learning development.

Laura Bellini

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