COMPUTER FUNDAMENTALS

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OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is meant by data compression?
A
Reducing the size of a file
B
Increasing the size of a file
C
Adding more pixels to an image
D
Emailing a file
Explanation: 

Detailed explanation-1: -Data compression is a reduction in the number of bits needed to represent data. Compressing data can save storage capacity, speed up file transfer and decrease costs for storage hardware and network bandwidth.

Detailed explanation-2: -File compression is a method of data compression that reduces the logical size of files to save disk space for easier and faster transmission over the network or Internet. It can create one or more versions of files with the same data that are much smaller than the original file.

Detailed explanation-3: -Text compression typically works by finding similar strings within a text file, and replacing those strings with a temporary binary representation to make the overall file size smaller.

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