Information representation: past paper questions

Where the questions come from

• Question 1May/June 2026, paper 11Structured12 marks

  A computer can store numbers and text in binary. The computer uses the UNICODE character set. Complete the table by calculating the missing values.

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• Question 1Oct/Nov 2025, paper 11Structured7 marks

  Convert the binary number into hexadecimal. 101100111010

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• Question 1Oct/Nov 2024, paper 11Structured7 marks

  State one difference between a tebibyte and a gigabyte.

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• Question 1Oct/Nov 2023, paper 11Structured7 marks

  Draw one line from each vector graphic term to its most appropriate description.

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• Question 5May/June 2026, paper 11Structured9 marks

  A school needs to create a new logo. The logo can be created as a bitmap image or a vector graphic. Explain how a bitmap image is encoded in a computer.

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• Question 7Oct/Nov 2025, paper 11Structured14 marks

  Web browsers use Internet Protocol (IP) addresses. Complete the table by describing the following types of IP address.

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• Question 4Oct/Nov 2024, paper 11Structured17 marks

  A student uses a laptop to write a program that is saved as a text file.

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• Question 3Oct/Nov 2023, paper 12Structured6 marks

  State one difference between a kibibyte and a megabyte.

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• Question 1May/June 2026, paper 12Structured8 marks

  Tick (✓) one box to identify the correct definition of a pixel in a bitmap image.

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• Question 6Oct/Nov 2025, paper 12Structured6 marks

  A sound file is compressed by reducing the sampling rate. State whether this is lossless or lossy compression.

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• Question 7Oct/Nov 2024, paper 12Structured7 marks

  A student takes a photograph of a science experiment. The photograph is saved as a bitmapped image. Define the following bitmap terms.

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• Question 6Oct/Nov 2023, paper 12Structured8 marks

  A real-time video of a music concert needs to be streamed to subscribers. Tick (✓) one box to identify the most appropriate type of compression and justify your answer.

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• Question 4May/June 2026, paper 12Structured4 marks

  A sound file has a sampling rate of 44.1kHz. Describe what is meant by a sampling rate of 44.1kHz.

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• Question 7Oct/Nov 2025, paper 12Structured4 marks

  The following binary addition is performed using 8‑bit registers. Complete the calculation using binary addition.

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• Question 6Oct/Nov 2024, paper 13Structured10 marks

  A computer system stores text, images and sound. A character set is used to represent characters in a computer. Identify and describe one character set.

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• Question 1Oct/Nov 2023, paper 13Structured3 marks

  State what is meant by analogue data.

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• Question 5May/June 2026, paper 12Structured7 marks

  Complete the table by calculating the missing values.

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• Question 1Oct/Nov 2025, paper 13Structured7 marksHas a diagram

  A student creates sound recordings. Making changes to a sound recording may impact the accuracy of the resulting sound file or the size of the file. Draw two lines from each change to the impacts it has on the sound file.

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• Question 8Oct/Nov 2024, paper 13Structured6 marks

  Convert the hexadecimal number 1FAB into denary. Working Denary value

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• Question 2Oct/Nov 2023, paper 13Structured4 marks

  Describe the impact of increasing the image resolution on the quality of a bitmap graphic.

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• Question 3May/June 2026, paper 13Structured13 marks

  An animation is a sequence of bitmap images with a sound recording played at the same time. The sound is recorded with a sampling resolution of 2 bytes. State what is meant by a sampling resolution of 2 bytes.

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• Question 2Oct/Nov 2025, paper 13Structured6 marks

  Data in a computer system is represented in binary. Put one tick (✓) in each row to identify the minimum number of bits used to store each example of data.

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• Question 2May/June 2024, paper 11Structured18 marksHas a diagram

  A video doorbell is attached to the front door of a house. The doorbell uses a motion sensor to detect when a visitor walks in front of the door. When the motion sensor is activated: • The digital camera in the doorbell starts recording a video.

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• Question 5Oct/Nov 2023, paper 13Structured9 marks

  A programmer uses an Integrated Development Environment (IDE) to develop a program that monitors air quality. Describe the following features of a typical IDE.

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• Question 6May/June 2026, paper 13Structured8 marksHas a diagram

  Draw one or more lines to match each denary number with its equivalent unsigned binary, hexadecimal or Binary Coded Decimal (BCD) value(s).

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• Question 7Oct/Nov 2025, paper 13Structured14 marks

  A digital video camera records students in a classroom. The data is transferred from the digital video camera over the internet to a server.

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• Question 7May/June 2024, paper 11Structured3 marks

  Complete the binary addition.

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• Question 1May/June 2023, paper 11Structured13 marks

  Images are being created to advertise holidays. Some of the images are bitmap images and some are vector graphics. Complete the table by defining the image terms.

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• Question 2May/June 2025, paper 11Structured13 marks

  Programmers in a software development company take part in live video conferences to discuss their work. The live video conferences take place using real-time bit streaming. The video is compressed before it is transmitted.

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• Question 2May/June 2024, paper 12Structured17 marks

  A computer game is being designed that users will be able to play using a virtual reality (VR) headset. Complete the description of the principal operation of a VR headset.

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