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Binary

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Question 23

An 8-bit microprocessor performs a binary addition of two 8-bit unsigned numbers, A A\,A and BBB.

  • The value of A A\,A is 0101 01110101\ 01110101 0111.
  • The value of B B\,B is obtained by performing a logical shift left by 1 place on the binary value 0011 01100011\ 01100011 0110.

Complete the table to show the binary value of B B\,B and the result of the binary addition A+BA + BA+B.

MSBLSB
A01010111
B
Sum
[2]
Markscheme

Binary Questions

  1. GCSE
  2. /Computer Science
  3. /Binary

117 exam-style questions on Edexcel GCSE Computer Science Binary, covering Binary representation and number of states, Unsigned and two's complement integers, Converting denary and 8-bit binary, Binary addition and binary shifts, Concept of overflow, and Hexadecimal notation and conversion. Each one has a worked solution and a mark scheme showing where the marks go.

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