| Nom | Description |
| Z CAV | Zoned Constant Angular Velocity |
| Z |
| Compress/Uncompress program"..upper case Z.."Unix" |
| Compressed file "file name extension using |
| ZAB | Zweistufiger hydromechanischer AuswerferBeschleuniger |
| ZAK | Zero Administration Kit "ZAW, MS, Windows NT" |
| ZAPP | Zero Assignment Parallel Processor |
| ZAW |
| Zero Administration for Windows |
| Zero Administration initiative for Windows MS, Windows NT |
| ZBB | Zero Base Budgeting |
| ZBBS | Zilog Bulletin Board Service |
| ZBR | Zone Bit Recording |
| ZBT | Zero Bus Turnaround ( memoire ) |
| ZC | Zone Co ordinator |
| ZCAV |
| Zone Constant Angular Velocity |
| Zoned Constant Angular Velocity |
| ZCV | Zortech Class Viewer |
| ZDL | Zero Delay Lockout |
| ZDS | Zenith Data Systems manufacturer |
| ZEBRA | Zero Energy Breeder Reactor Assembly |
| ZEN | Zero Effort Networks |
| ZF | Zero Flag |
| ZFP | Zero-Flag Propagation |
| ZI | Zonal Index |
| ZIA | Zero power Interconnect Array |
| ZIF |
| Zero Insertion Force (socket) |
| Zero Intermediate Frequency [ receiver = direct conversion receiver ] |
| ZIL | Zork Implementation Language |
| ZIP |
| Compressed File "file name extension" "PKWare" |
| Zigzag Inline Package |
| Zone Improvement Plan ( code ) |
| Zone Information Protocol |
| ZIS | Zone Information Socket |
| ZISC | Zero Instruction Set Computer |
| ZIT | Zone Information Table |
| ZMA | Zone Multicast Access |
| ZMH | Zone Mail Hour |
| ZMODEM | File transfer protocol |
| ZOC | Zap O Comm |
| ZOO | Compressed File "file name extension" "Dhesi" |
| ZPR | Zero Power Resistance |
| ZPV | Zoomed Port Video |
| ZRE | Zero Rate Error |
| ZSL | Zero Slot LAN |
| ZTA | Zirconia Toughened Alumina ( ceramic ) |
| ZTAT | Zero Turn Around Time |
| ZV | Zoom Video ( interface ) |
| ZVS HB | Zero Voltage Switched Half Bridge ( converter ) |
| ZVS | Zero Voltage Switching |
| ZVT | Zero Voltage Transition ( switching ) |
| ZnO | Zinc Oxide |
| z | Packed file "file name extension using Pack/Unpack program"..lower case z.."Unix" |
