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Unit 1 - Data Representation

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GCSE Computing OCR National

Question 1 of 4

1

Computers store everything in 1s and 0s?

Select one of the following:

  • True
  • False

Explanation

Question 2 of 4

1

What do we use in our daily lives as a number system?

Select one of the following:

  • Denary

  • Hexidecimal

  • Binary

Explanation

Question 3 of 4

1

The Binary for the Denary value for 13 is

Select one or more of the following:

  • 1100

  • 1101

  • 1111

  • 1001

  • 1011

Explanation

Question 4 of 4

1

Add the following two 8-bit binary and explain the result.

10101011 + 10111011

Select one or more of the following:

  • 101100110

  • There is an overflow

  • 11011100

Explanation

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