connected system
81Automatic Packet Reporting System — (APRS) is an amateur radio based system for real time tactical digital communications of information of immediate value in the local area. In addition, all such data is ingested into the APRS Internet system (APRS IS) and distributed globally for …
82Pitot-static system — A pitot static system is a system of pressure sensitive instruments that is most often used in aviation to determine an aircraft s airspeed, Mach number, altitude, and altitude trend. A pitot static system generally consists of a pitot tube, a… …
83Signaling System 7 — Signaling System #7 (SS7) is a set of telephony signaling protocols which are used to set up most of the world s public switched telephone network telephone calls. The main purpose is to set up and tear down telephone calls. Other uses include… …
84Signalling System No. 7 — SS7 protocol suite OSI layer SS7 protocols Application INAP, MAP, IS 41... TCAP, CAP, ISUP, ... Network MTP Level 3 + SCCP Data link MTP Level 2 …
85Digital Access Carrier System — (DACS) is the name used by British Telecom (BT Group plc) in the United Kingdom for a 0+2 Pair gain system. Two Telspec DACS remote units mounted on a pole Contents 1 Usage …
86Digital Sound System 80 — The Digital Sound System 80, short DSS80, was a three piece PC audio system co developed by Microsoft and Philips. It debuted on the 1998 Electronic Entertainment Expo (E³) and is most likely the only speaker system ever released by the Microsoft …
87Tandy Video Information System — Tandy Memorex Visual Information System (VIS) was an interactive, multimedia CD ROM player produced by the Tandy Corporation starting in 1992. It was similar in function to the Philips CD i and Commodore CDTV systems (particularly the CDTV, since …
881A2 Key System — The 1A2 Key System is an analog multiline business key telephone system. Unlike more modern multiline systems, every telephone line serving a particular phone is wired into that phone, and electromechanical switches (the keys ) switch the lines… …
89Universal Mobile Telecommunications System — (UMTS) is one of the third generation (3G) cell phone technologies, which is also being developed into a 4G technology. Currently, the most common form of UMTS uses W CDMA as the underlying air interface. It is standardized by the 3GPP, and is… …
90Autonomous system (Internet) — In the Internet, an Autonomous System (AS) is a collection of connected IP routing prefixes under the control of one or more network operators that presents a common, clearly defined routing policy to the Internet, cf. RFC 1930, Section… …
