Zip
A compression and archiving format made popular on the MS-DOS/PC platform with the PKzip software, Zip offers one of the best compression ratios of the popular formats.
Z-Modem
A file transfer protocol based on X-Modem, Y-Modem was designed by Chuck Forsberg to add batch transmission, and variable block size.
See Also Xmodem and Ymodem.
Zone
An area under a particular administrative or other control, for example a domain name is a 'zone' in the name server configuration. Generally a zone can be further divided into subzones with authority delegated to their own administrators and servers.
Zoo
A compression and archiving format made popular on the Amiga system, zoo is available in public-domain executables for most major operating systems.