An adapter card that connects a computer to a network. The development of a network linking computers together to share discussion groups. There are literally tens of thousands of different newsgroups discussing virtually every subject imaginable. From operating systems to sports, politics, religion, and entertainment. A single computer or terminal in a network.
Networks can consist of numerous nodes, each operating independently.
Z ero I nverted . A method for transmitting and recording data so that it keeps the sending and receiving clocks synchronized. These added bits can create a long string of similar bits, which register to the receiver as a single, unchanging voltage. Since clocks adjust on voltage changes, they'll lag behind true time. NRZI ensures that after a 0 bit appears, the voltage will immediately switch to a 1 bit voltage level.