The computer operating system for IBM's zSeries 900 (z900) line of large (mainframe) servers. z/OS is a renamed and upgraded version of OS/390, which in turn evolved from the MVS operating system.

A standard communications protocol for the search and retrieval of bibliographic data in online databases. Z39.50 is used on the Internet to search the Online Public Access Catalogues (OPAC) of library holdings.

A 64-bit mainframe computer from IBM that contains up to 32 processors, together capable of executing approximately 9,000 million instructions per second (MIPS), nearly three times the processing power of IBM's z900. 

A logical structure intended to provide a comprehensive representation of an information technology enterprise. It allows for multiple perspectives and categorization of business artifacts. 

ZBrush is a digital sculpting tool that combines 3D/2.5D modeling, texturing and painting. It uses a proprietary "pixol" technology (see below) which stores lighting, color, material, and depth information for all objects on the screen. The main difference between ZBrush and more traditional modeling packages is that it is more akin to sculpting.

Zend Certified Engineed PHP (ZCE) by Zend Technologies

ZyXEL Certified Network Engineer - IP DSLAM (ZCNE IP DSLAM) by ZyXEL

ZyXEL Certified Network Engineer - Integrate Service Gateway (ZCNE ISG) by ZyXEL

ZyXEL Certified Network Engineer - Security (ZCNE Security) by ZyXEL

ZyXEL Certified Network Engineer - Switch (ZCNE Switch) by ZyXEL

ZyXEL Certified Network Engineer - Wireless LAN (ZCNE Wireless LAN) by ZyXEL

ZyXEL Certified Network Professional - Digital Home (ZCNP Digital Home) by ZyXEL

ZyXEL Certified Network Professional - FTTx (ZCNP FTTx) by ZyXEL

ZyXEL Certified Network Professional - IP DSLAM (ZCNP IP DSLAM) by ZyXEL

ZyXEL Certified Network Professional - LTE (ZCNP LTE) by ZyXEL

ZyXEL Certified Network Professional - Security (ZCNP Security) by ZyXEL