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Tutor HuntTest QuestionsComputing QuestionsYear 10 Computing Questions

 

Text, Sound And Images (GCSE Computing)

The following is a GCSE Computing test covering 'Text, Sound And Images' from the broader topic 1. Data Representation. The test is geared towards the CAMBRIGE-IGCSE exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

What does 24-bit colour (true colour) mean in terms of channels and bits?
Convert the 16-bit binary number 1010000000111101 into 4-digit hexadecimal (group into 4-bit hex digits).
Which of the following is a correct method to compute the uncompressed size in bytes of a colour bitmap image?
Which of these audio formats is typically lossless?
Which of the following best defines sample resolution (bit depth) for digital audio?
Which compression method is especially effective for simple images with long runs of the same colour (e.g., scanned text or icons)?
Which character encoding uses 7 bits per character in its original form?
When converting analogue speech up to 8 kHz highest frequency, what minimum sample rate is required by the Nyquist theorem to avoid aliasing?
How many possible colours are available in a 16-bit colour image (commonly 5-6-5 RGB)?
Which of the following correctly describes the payload in a packet used when transmitting digital data like images or audio?
Which statement about UTF-8 is true?