duplex equipment
121Piano — Pianoforte redirects here. For earlier versions of the instrument, see Fortepiano. For other uses of Piano, see Piano (disambiguation). Piano Bösendorfer grand piano Keyboard instrument …
122Sound card — A Sound Blaster Live! Value card, a typical (circa 2000) PCI sound card. Connects to Motherboard via one of: PCI ISA USB IEEE 139 …
123Data link — This article is about a telecommunication term. For the American data storage company, see Datalink Corporation. For the Open System Interconnection model second layer, see Data link layer. In telecommunication a data link is the means of… …
124Media Access Control — The Media Access Control (MAC) data communication protocol sub layer, also known as the Medium Access Control, is a sublayer of the Data Link Layer specified in the seven layer OSI model (layer 2). It provides addressing and channel access… …
125Radiotelephone — A radiotelephone is a communications device that allows two or more people to talk using radio. There is disagreement about the definition of the term. There is a conflict between British English usage, American English usage, and historic use.… …
126Novation CAT — The original Novation CAT Novation was an early modem manufacturer whose CAT series were popular in the early home computer market in the late 1970s and early 1980s, notably on the Apple II. The Hayes Smartmodem 300, introduced in 1981, helped… …
127Analogmodem — Vorderseite eines V.90 Modems Ein Modem (aus Modulator und Demodulator gebildetes Akronym oder Kofferwort, daher auch der Modem) dient dazu, Signale mit Hilfe eines oder mehrerer Trägersignale an die jeweiligen Eigenschaften des Übertragungswegs… …
128Faxmodem — Vorderseite eines V.90 Modems Ein Modem (aus Modulator und Demodulator gebildetes Akronym oder Kofferwort, daher auch der Modem) dient dazu, Signale mit Hilfe eines oder mehrerer Trägersignale an die jeweiligen Eigenschaften des Übertragungswegs… …
