digital transmission hierarchy
81OSI model — 7. Application layer NNTP  · SIP  · SSI  · DNS  · FTP  · Gopher  · …
82Inheritance — For other uses, see Inheritance (disambiguation) and Heir (disambiguation). William Hogarth s plate 1 from A Rake s Progress, The Young Heir Takes Possession Of The Miser s Effects as his inherita …
83Network Time Protocol — The Network Time Protocol (NTP) is a protocol and software implementation for synchronizing the clocks of computer systems over packet switched, variable latency data networks. Originally designed by David L. Mills of the University of Delaware… …
84Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …
85Public broadcasting — includes radio, television and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing and commercial… …
86Synchronous Optical Network — Abbreviated SONET. A set of fiber opticbased communications standards with transmission rates from 51.84Mbps to 13.22Gbps. First proposed by Bellcore in the mid1980s, SONET was standardized by ANSI, and the ITU adapted SONET in creating the …
87Cab signalling — is a railroad safety system that communicates track status information to the train cab (driving position), where the engineer or driver can see the information. The simplest systems display the trackside signal aspect (typically, green, yellow… …
88Communication with Extraterrestrial Intelligence — CETI (Communication with Extraterrestrial Intelligence) is a branch of SETI research that focuses on composing and deciphering messages that could theoretically be understood by another technological civilization. The best known CETI experiment… …
89Classical music — Montage of great classical music composers. From left to right: Top row – Antonio Vivaldi, Johann Sebastian Bach, George Frideric Handel, Wolfgang Amadeus Mozart, Ludwig van Beethoven; second row – Gioachino Rossini, Felix Mendelssohn, Frédéric… …
90Cladistics — For the scientific journal, see Cladistics (journal). Part of a series on Evolutionary Biology …
