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Cambridge IGCSE Computer Science practice

Paper 1 structured question: Number systems

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Number systems

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Paper 1Computer Systems3 marks

Understanding overflow in binary addition

Description

Overflow in Binary Addition

Explain what happens when two binary numbers are added and the result exceeds 255.

  1. a

    Explain the concept of overflow in binary addition.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 1 structured question: Number systems

Paper 1Computer Systems2 marks

Description

Binary Addition Example

Calculate the sum of the following binary numbers: 10101010 and 01010101.

  1. a

    Calculate the sum of the two binary numbers provided.

    Aim for approximately 2 distinct marking points.

    [2]