Compression ratioThesize of the compresseddata divided by the sizeof the uncompresseddataLossless compressionA technique in whichthere is no loss of infor-mationLossy compressionA technique in whichthere is loss of informa-tionAnalog dataInforma-tion represented in acontinuous formDigital dataInformation representedin a discrete form3.1Data and Computers53restrictions that define the maximum number of bits or bytes that can betransmitted from one place to another in a fixed amount of time.The compression ratiogives an indication of how much compressionoccurs. The compression ratio is the size of the compressed data divided bythe size of the original data. The values could be in bits or characters orwhatever is appropriate as long as both values are measuring the samething. The ratio should result in a number between 0 and 1. The closer theratio is to zero, the tighter the compression.
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