International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Compression is useful because it helps one to reduce the resources usage, such as data storage space or transmission capacity. Compression methods have a long list. In this paper, reviews of different basic lossless data and lossy compression techniques are considered. On the basis of these techniques the authors try to purpose a bit reduction algorithm used for compression of text data which is based on number theory system and file differential technique. It is a simple compression and decompression process which is free from time complexity.