IGCSE Information & Communication Technology Paper-1: Specimen Questions with Answers 35 - 35 of 46

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Question 35

Appeared in Year: 2009


Match List-Ⅰ List-Ⅱ▾

Match the following




Used for data that is made up of letters and numbers




Used when there are only two possible responses to a question




Made up of whole numbers




Numbers include decimals


Choice (4)
  • (A)
  • (B)
  • (C)
  • (D)


  • (i)
  • (ii)
  • (iii)
  • (iv)


  • (iii)
  • (ii)
  • (i)
  • (iv)


  • (iii)
  • (i)
  • (iv)
  • (ii)


  • (iii)
  • (ii)
  • (iv)
  • (i)




Real, Boolean, integer and alphanumeric are different data types.

The main types of data found in a computer system are:

  • Boolean (True/False) - sometimes also called ‘logical’
  • Text/Alphanumeric
  • Numeric (Numbers)
  • Currency (Money)
  • Percentage
  • Date/Time
  • Boolean: Boolean data can only have one of two values - true or false. Boolean՚s are used when there are only two possible responses to a question. Examples of responses that can be stored as a Boolean are:
    • True/False
    • Yes/No
    • On/Off
    • Male/Female
    • 1 or 0
  • Alphanumeric: Alphanumeric data is used for data that is made up of letters AND numbers . Other symbols such as @, #, $ , / and spaces are also considered to be alphanumeric. For example: a password of ‘JUPITER123’ would be regarded as alphanumeric.
  • Numeric (number) data can be in two forms: Integer and Real.
    • Integer: Integers are made up of whole numbers (numbers without decimals) . Integers can be both positive and negative values. For example: the number 123 is an integer. -123 is also an integer
    • Real: Real numbers are those that include decimals. Real numbers can be both positive (above zero) and negative (below zero) . For example: the number 33.5 is a real number. -33.5 is also a real number.

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