(pronounced grawk) A slang term used to describe a total and thorough, or intuitive, understanding of something without really having to think about it. The word grok was first used by author Robert A. Heinlein in the science fiction novel, “Stranger in a Strange Land”.
A class of software that helps groups of colleagues (workgroups) attached to a local-area network organize their activities. Typically, groupware supports the following operations: scheduling meetings and allocating resources e-mail password protection for documents telephone utilities electronic newsletters file distribution Groupware is sometimes called workgroup productivity software.
- guard band
Also called a frequency guard band, a narrow frequency band between adjacent channels in multiplexing that is kept unused to prevent the channels from overlapping and causing crosstalk among modulated signals. Guard bands are commonly used in FDM but are also used in any data transmission method that relies on frequencies. Also spelled guardband.
- guard time
A time interval left vacant (i.e., during which no data is sent) on a transmission channel that can be used for synchronization and/or compensating for a signal distortion. The guard time provides a safety margin against symbol interference in the time between sequential operations such as transmission, encoding, decoding or switching.
In desktop publishing, the space between columns in a multiple-column document.
Short for high availability cluster multiprocessing, HACMP is an IBM cluster system for AIX-based computing platforms. IBM’s HACMP product was first released in 1991. All popular applications work with HACMP including DB2, Oracle, SAP, WebSphere, and others.