PRI
Short for Primary-Rate Interface, a type of ISDN service designed for larger organizations. PRI includes 23 B-channels (30 in Europe) and one D-Channel. In contrast, BRI (Basic-Rate Interface), which is designed for individuals and small businesses, contains just two B-channels and one D-channel.
PRI service is generally transmitted through a T-1 line (or an E1 line in Europe).
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PRM is a standardized framework to measure the performance of major IT investments and their contribution to program performance. PRM is a Federal Enterprise Architecture (FEA), a reference model that is used to develop a common taxonomy for describing IT resources. The Performance Reference Model is designed for the following goals: Help produce enhanced performance […]
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Short for programmable read-only memory, a memory chip on which data can be written only once. Once a program has been written onto a PROM, it remains there forever. Unlike RAM, PROMs retain their contents when the computer is turned off. The difference between a PROM and a ROM (read-only memory) is that a PROM […]
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Abbreviation for “parents are watching”. PRW is commonly used in newsgroups, chat rooms, instant messaging, text messaging, SMS, e-mail and other real time text-based communications.
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Short for public safety answering point, a physical location where 911 emergency telephone calls are received and then routed to the proper emergency services. See E911.
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Short for packet-switched data network, a data communications network that is based on the principles of packet switching, as opposed to circuit switching that is used in public telephone networks. Packet-switched networks do not establish physical communication channels between communicating devices like circuit-switched networks do. Instead, signals are formed into fixed-length packets that are affixed […]