Data representation: past paper questions

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• Question 1May/June 2026, paper 11Structured3 marks

  Data storage can be measured in different units. Tick (✓) one box to show which is the largest unit of measurement for data storage.

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• Question 1Oct/Nov 2025, paper 12Structured13 marks

  A toy store gives each of the toys it sells a unique code. The codes are 3-digit hexadecimal codes, for example A4B. A computer is used to store a database of the codes.

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• Question 2Oct/Nov 2024, paper 12Structured7 marks

  Data storage can be measured using different units of measurement. Identify the name of the smallest unit of measurement of data.

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• Question 2Oct/Nov 2023, paper 12Structured10 marks

  A register stores the binary number: 1 1 1 0 0 0 1 1 Give the denary number for the binary number stored in the register.

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• Question 3May/June 2026, paper 11Structured9 marks

  Hexadecimal and binary are two examples of a number system. Give one other example of a number system.

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• Question 2Oct/Nov 2025, paper 12Structured7 marks

  Two binary numbers are stored in a computer. Add the two binary numbers using binary addition. Give your answer in binary.

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• Question 3Oct/Nov 2024, paper 12Structured13 marks

  A user enters data that is hexadecimal into a computer system. The data is converted to binary to be processed by the computer. Give one similarity between hexadecimal and binary.

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• Question 5Oct/Nov 2023, paper 12Structured5 marks

  A band is recording their new song. They need to consider the sample rate and sample resolution of their recording. Give one benefit of using a higher sample rate to record the song.

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• Question 8May/June 2026, paper 11Structured10 marks

  A student opens a document on their computer and inputs text. Explain how the computer represents the text.

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• Question 1May/June 2025, paper 11Structured4 marks

  The size of a file can be measured using different data storage units. Tick (✓) one box to show the smallest data storage unit.

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• Question 2May/June 2024, paper 11Structured4 marks

  Hypertext markup language (HTML) colour codes can be represented as hexadecimal. Tick (✓) one box to show which statement about the hexadecimal number system is incorrect.

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• Question 1May/June 2023, paper 11Structured11 marks

  Binary is a number system used by computers. Tick (✓) one box to show which statement about the binary number system is correct.

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• Question 2May/June 2025, paper 11Structured9 marks

  A clothes store has a ticket system to allow customers to speak to a personal shopper. The ticket displays a ticket number in hexadecimal, for example 11B. The ticket system has an output device that creates a paper ticket.

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• Question 3May/June 2024, paper 11Structured5 marks

  The binary number 10100011 is stored in random access memory (RAM). A logical left shift of three places is performed on the binary number. Give the 8-bit binary number that will be stored after the shift has taken place.

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• Question 2May/June 2023, paper 11Structured10 marks

  A student has a sound file that is too large to be stored on their external secondary storage device. The student compresses the sound file to make the file size smaller. The compression method used reduces the sample rate and the sample resolution of the sound file.

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• Question 3May/June 2025, paper 11Structured4 marks

  An image is converted to binary to be represented by a computer. Complete the table with the missing terms and definition about representing an image.

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• Question 1May/June 2024, paper 12Structured6 marks

  Data can be measured in bits. Give the name of the data storage measurement that is equal to 8 bits.

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• Question 2May/June 2023, paper 12Structured10 marks

  Binary numbers can be converted to hexadecimal. Convert the two binary numbers to hexadecimal. 10010011 ..................................................................................................................................

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• Question 6May/June 2026, paper 12Structured10 marks

  A student has an application (app) on their smartphone that can be used to identify the name of a flower.

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• Question 1May/June 2025, paper 12Structured13 marks

  A computer stores data temporarily in random access memory (RAM). RAM is one example of primary storage. Give one other example of primary storage.

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• Question 3May/June 2024, paper 12Structured11 marks

  Binary is a base 2 number system. Give the name of the number system that is base 16.

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• Question 3May/June 2023, paper 12Structured10 marks

  When keys are pressed on a keyboard, the text is converted to binary to be processed by the computer. Describe how the text is converted to binary to be processed by the computer.

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