Compression - Word Drop

Compression reduces the ______ of a file, which is measured in megabytes. A smaller file takes up less storage space and ______ faster from a website. A compressed file must be ______ before it can be opened and used again. Depending on the type of compression, some ______ may be lost.

Lossy compression reduces the size of a file by permanently ______ some of the information it holds. The file cannot be rebuilt exactly afterwards. Because a lot of the data is removed, this gives a ______ reduction in size. However, heavy compression causes digital ______, such as pixelation, which are visible mistakes. It is used for photographs, video and music, where a slight loss of detail is acceptable.

______ compression is a type of compression that does not lose any information, so, once uncompressed, the file is exactly the same as the ______. It only gives a ______ reduction in size, because very little data is removed, unless the file is text. It is used for word-processed documents, program files, game code and ZIP files, because their contents must not change.