File Size Calculation (3 marks)
A text file contains 4,000 characters. If one character is stored in one byte, calculate the size of the file in kilobytes.
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Binary Units
Understanding Data Units (3 marks)
Convert the following storage units (show your working): a) 512 bytes to kilobytes (1 mark) b) 5 megabytes to bytes (1 marks) c) 7 gigabytes to megabytes (1 mark)
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Gigabytes vs Terabytes (2 marks)
Explain the difference between a gigabyte and a terabyte in terms of bytes.
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Calculate File Size in Mebibytes (2 marks)
Calculate the file size in mebibytes of a text document that contains 450,000 characters, assuming each character is stored in one byte.
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Gibibytes and Storage (3 marks)
A video file is 1.5 gibibytes in size. How many such files can be stored on a 16 gibibyte USB stick?
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Calculating Storage Needs (2 marks)
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.
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Bytes to Kilobytes (2 marks)
A file has a size of 2048 bytes. Express this size in kilobytes.
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Giga vs Gibi (4 marks)
When a storage device is advertised as having a capacity of 2 gigabytes (GB), this might actually refer to gibibytes (GiB) since these terms are sometimes used interchangeably but incorrectly so. Explain whether the advertised capacity will appear larger, smaller, or the same when measured in gibibytes (GiB), and justify your answer based on the
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Units (4 marks)
Convert the following quantities of bytes into the largest whole unit possible and express the result as a whole number: 1,500,000 bytes and 12,000,000 bytes. State the unit and the corresponding value.