Z.100
Languages for telecommunications applications – specification and description language.
Z.xxx
ITU Z series recommendations - Languages and general software aspects for telecommunication systems.
Zig zag coding/decoding
Image compression technique used in the frequency domain to arrange a two dimensional matrix of coefficients in increasing order of frequency to allow further loss-less compression to be applied to the data.
Zip drive
An internal or external computer drive and associated high capacity disks (from 100Mb up) that enable you to orgains, move and backup your files.
21CN
BT's 21st century network.
