Data and Information
Computer Studies · 50 practice questions
Differences between data and information and the properties of information; data types (integers, real numbers, strings, multimedia); data representation using number bases (binary, decimal, hexadecimal); the concept and process of digitization (manual, heads-up, interactive tracing, automatic) and formats of digitized data (image, audio, video, text, multimedia).
- Define data and information and list the properties of information.
- Identify ways of representing and handling data using different number bases.
- Define digitization and explain its process.
- List different formats of digitized data.
Try a few questions
- Practice question 1
Combining several logic gates allows more complex digital circuits to be constructed for
- A.no functional purpose at all
- B.purely decorative, non-functional display purposes
- C.specific computing functions
- D.functions entirely unrelated to computing
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C. specific computing functions
Combining basic gates is exactly how more sophisticated digital circuits are built to perform specific functions.
- Practice question 2
Reliable data representation is fundamental to ensuring computers can accurately
- A.physically manufacture new hardware components
- B.print physical documents without any software
- C.connect to a network without any cables
- D.store, process, and retrieve information
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D. store, process, and retrieve information
Accurate data representation underpins a computer's core ability to reliably store, process, and retrieve information.
- Practice question 3
Video data, a format of digitized data, represents moving images, often combined with
- A.no audio of any kind, under any circumstances
- B.a purely printed, static document
- C.a purely numerical spreadsheet format
- D.synchronized audio, in digital form
Show the answer
D. synchronized audio, in digital form
Video data typically pairs moving images with synchronized audio, both represented digitally.
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