.z        Packed file (file name extension - using Pack/Unpack

          program)..lower case z..[Unix]

.Z        Compressed file (file name extension - using

          Compress/Uncompress program)..upper case Z..[Unix]

ZAK       Zero Administration Kit [Microsoft]

ZAW       Zero Administration for Windows [Microsoft]

ZBR       Zone-Bit Recording [IBM]

Z-CAV     Zoned Constant Angular Velocity

ZDL       Zero Delay Lockout

ZDS       Zenith Data Systems

ZIF       Zero-Insertion Force (socket)

ZIP       Zigzag In-Line Package +

          Zone Improvement Plan (ZIPcode)

.ZIP      Compressed File (file name extension) [PKWare]

.ZOO      Compressed File (file name extension) [Dhesi]

ZPV       Zoomed Port Video [Toshiba]

ZSL       Zero Slot LAN