- plural form of PC
- (telecommunications) Personal communication system.
Personal Communications Services. Originating in the United Kingdom, where it is known as PCN (Personal Communications Network), PCS is a service concept for a full range of wireless services accessible through a single device and utilizing one telephone number that will work anywhere and anytime, for life. While the service is technology-dependent and the spectrum allocation varies by country or region, the designated U.S. band designations and frequency allocations are as follows:
(1) (Personal Communications Services) The wireless services that emerged after the U.S. government auctioned commercial licenses in 1994 and 1995. This radio spectrum in the 1.8-2 GHz range is typically used for digital cellular transmission that competes with analog and digital services in the 800 MHz and 900 MHz bands.
(2) (Personal Conferencing Specification) A videoconferencing technology that uses Intel's Indeo compression method. It is endorsed by the Intel-backed Personal Conferencing Working Group (PCWG). Initially competing against H.320, Intel subsequently announced its videoconferencing products will also be H.320 compliant.