On the Internet, the equivalent areas are called newsgroups. Second, some commercial services use the term to describe their on-line discussion groups. Top of Page C Compression - pretty much what it sounds like. The process of condensing information so that it can be stored in less space or transmitted in less time. Some data files use more bandwidth as they are transmitted over the lines.
Compression helps to move more data more quickly.
Compressed files are usually identified by certain endings. For example, Windows or DOS files usually end in .zip or .arc or lhz. Mac users will see endings such as .hqx or .bin or .sea . In some cases, the decompression program comes with the document. In other cases, you will need a special program to decompress the data to make it usable.