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Number bases

Number bases

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1
Question 1

A digital imaging sensor represents a normalized pixel luminance value as a 6-bit fractional binary number:

0.1101012 0.110101_2 0.1101012​

To process this value in a denary-based database, a software engineer needs to convert this representation to its exact base 10 decimal equivalent.

What is the correct denary value of this binary number?

A

0.4140625100.4140625_{10}0.414062510​

B

0.671875100.671875_{10}0.67187510​

C

0.828125100.828125_{10}0.82812510​

D

0.859375100.859375_{10}0.85937510​

Markscheme

Number bases Questions

  1. GCSE
  2. /Computer Science
  3. /Number bases

27 exam-style questions on AQA GCSE Computer Science Number bases. Each one has a worked solution and a mark scheme showing where the marks go.

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