Comparing Compression Methods (2 marks)
Compare lossless and lossy compression in terms of their methodology.
Comparing Compression Methods (2 marks) Read More »
Compare lossless and lossy compression in terms of their methodology.
Comparing Compression Methods (2 marks) Read More »
Identify whether the following statement is true or false: “Lossless compression methods can significantly reduce the file size without any loss of data quality.” (Indicate True or False for one mark)
Identifying Data Compression Types (1 mark) Read More »
Explain why data compression is needed in computer systems.
Understanding Data Compression (2 mark) Read More »
A photograph is stored as a 24-bit bitmap image with a resolution of 1280 x 1024 pixels. Calculate the file size in kibibytes.
Bitmap Storage Requirements (4 marks) Read More »
A database uses 2 bytes to store a single character. Write an expression to calculate the file size in bytes, then carry out the calculation, for a database entry that contains 3,000 characters.
Calculating Storage Needs (2 marks) Read More »
A video file is 1.5 gibibytes in size. How many such files can be stored on a 16 gibibyte USB stick?
Gibibytes and Storage (3 marks) Read More »
Calculate the file size in mebibytes of a text document that contains 450,000 characters, assuming each character is stored in one byte.
Calculate File Size in Mebibytes (2 marks) Read More »
A graphic design program uses 24 bits to store the colour of a pixel in an image, with 8 bits for each of the red, green, and blue components. Discuss the limitations this system may encounter if the program were to support a wider range of colours or shades, and how this might affect the
Binary Representation Limitations (4 marks) Read More »
Describe a scenario where the limitations of binary representation are evident when using a fixed number of bits. Explain the implications of these limitations in the context of digital audio sampling.
Limitations of Binary Representation (3 marks) Read More »
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