PKZIP

Vangie Beal
Last Updated May 24, 2021 7:52 am

One of the most widely used file compression methods. PKZIP was developed by PKWARE, Inc. in 1989 and distributed as shareware. Files that have been compressed using PKWARE are said to be zipped. Decompressing them is called unzipping.

The PK stands for Phillip Katz, the author of the programs.