Otherwise, a chemical reaction has occurred and a chemical change is indicated. 1  Article. 2  Article. 3  Article. 4  Article. 5  Article. 6  Article. 7  Article. 8  Article.
packet switching. n. A method of data transmission in which data is broken into small blocks that are transmitted over different channels and are reassembled into their original order at their destination.
Circuit-switching network. a network that sets up a circuit between the sender and receiver before any communications can occur; this circuit is maintained for the duration of the communication and cannot be used to support any othe communications util the circuit is released and a new connection is set up.