packet-switched data transmission service
1Packet switched network — A Packet Switched Network, or PSN, refers to the packet switched networks that existed before the Internet. The history of such networks can be divided into three eras:early networks before the introduction of X.25 and OSI,the X.25 era when many… …
2Public data transmission service — In telecommunication, a public data transmission service is a data transmission service that is established and operated by a telecommunication administration, or a recognized private operating agency, and uses a public data network. Note: A… …
3Circuit Switched Data — (CSD) is the original form of data transmission developed for the time division multiple access (TDMA) based mobile phone systems like Global System for Mobile Communications (GSM). CSD uses a single radio time slot to deliver 9.6 kbit/s data… …
4High-Speed Circuit-Switched Data — (HSCSD), is an enhancement to Circuit Switched Data, the original data transmission mechanism of the GSM mobile phone system, four times faster than GSM, with data rates up to 38.4 kbit/s.As with CSD, channel allocation is done in circuit… …
5Packet switching — is a digital networking communications method that groups all transmitted data – regardless of content, type, or structure – into suitably sized blocks, called packets. Packet switching features delivery of variable bit rate data streams… …
6Packet Switch Stream — In the UK, PSS, was an X.25 based packet switched network, provided by the British Post Office Telecommunications and then British Telecom from 1980, onwards. After a period of pre operational testing with customers (mainly UK Universities and… …
7Packet (information technology) — In information technology, a packet is a formatted unit of data carried by a packet mode computer network. Computer communications links that do not support packets, such as traditional point to point telecommunications links, simply transmit… …
8General Packet Radio Service — (GPRS) is a packet oriented mobile data service on the 2G and 3G cellular communication system s global system for mobile communications (GSM). GPRS was originally standardized by European Telecommunications Standards Institute (ETSI) in response …
9Network packet — In computer networking, a packet is a formatted unit of data carried by a packet mode computer network. Computer communications links that do not support packets, such as traditional point to point telecommunications links, simply transmit data… …
10Quality of service — In the field of computer networking and other packet switched telecommunication networks, the traffic engineering term quality of service (QoS) refers to resource reservation control mechanisms rather than the achieved service quality. Quality of …
