Explain the difference between lossless and lossy data compression techniques.

as the name implies , a lossless compression technique is designed so that the original file exactly as it was . maximum comparisson possible is about 50% . lossless algorithms use some sort of replacing technique ( like RLE or FLAC) .one rough example of replacement would be : 000–1111–222222–333 = 3–0, 4–1, 6–2, 3–3 on the contrary , a lossy compression technique does not allow the original file to be recreated exactly as it was as some detail is lost . As a result it was compress up to 10% of the original file size . example compressed formats would be jpeg and mp3

NP

Related Computing A Level answers

All answers ▸

How does the Stack data type work?


Write pseudocode for the linear search algorithm, and then explain it’s complexity using big-O notation


The numbers 6B and 12 are displayed in hexadecimal form. Convert them into binary form and perform binary addition to find the sum. Convert your answer back into hexadecimal. Show your workings.


What is 'Virtual Memory', and how does it work?