z/OS
Often abbreviated as ZOS, z/OS is IBM’s mainframe operating system. It is a 64-bit operating system that supports Java, UNIX, API’s, and TCP/IP to name a few features. z/OS.e is a specially priced, slimmed-down offering of z/OS. It provides select functions but uses the same code base as z/OS and invokes an operating environment that is comparable to z/OS in service, management, reporting, and reliability. The first name for IBM’s mainframe operating system was MVS (Multiple Virtual Storage), which was succeeded first by OS/390 and then z/OS.
Read Also:
- zero wait state
Refers to systems that have no wait states; that is, they allow the microprocessor to run at its maximum speed without waiting for slower memory chips.
- zettabyte
2 to the 70th power bytes, which is approximately 10 to the 21st power (1,000,000,000,000,000,000,000) bytes. A zettabyte is equal to 1,024 exabytes. The name zetta was chosen because it’s the last letter of the Latin alphabet and also sounds like the Greek letter Zeta.
- zip code targeting
In online advertising zip code targeting is the geographical targeting of advertisements based on the visitors zip code. An example of zip code targeting is when an online publication requires visitors to register to read the site’s content. Once logged in, the visitor will see local advertisements that are served based on the zip code […]
- ZeuS
The most widespread botnet in history, ZeuS is a Trojan horse that infiltrates computers in order to steal data by logging keystrokes and spread copies of itself to other devices via instant messaging and e-mail messages. Computers infected by a ZeuS variant can be controlled by the attacker and monitored for keystrokes in order to […]
- zombie
(1) A computer that has been implanted with a daemon that puts it under the control of a malicious hacker without the knowledge of the computer owner. Zombies are used by malicious hackers to launch DoS attacks. The hacker sends commands to the zombie through an open port. On command, the zombie computer sends an […]