Chapter 7 Key Terms

Chapter 7 Key Terms - Chapter 7 Key Terms 3G networks-...

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Chapter 7 Key Terms 3G networks- cellular networks based on packet-switched technology with speeds ranging from 144 kilobits per second (Kbps) for mobile users to over 2 megabits per second (Mbps) for stationary users enabling users to transmit video, graphics, and other rich media, in addition to voice. Peer-to-peer- network architecture that gives equal power to all computers on the network; used primarily in small networks. Bandwidth- the capacity of a communications channel as measured by difference between the highest and lowest frequencies that can be transmitted by that channel. Personal-area networks (PANs) - computer network used for communication among digital devices (including telephones and personal digital assistants, or PDAs) that are close to one person. Blog- popular term for Weblog, designated an informal yet structured Web site where individuals can publish stories, opinions, and links to other Web sites of interest. Personal digital assistants (PDAs) - small, pen-based, handheld computers with built-in wireless telecommunications capable of entirely digital communications transmission. Bluetooth- standard for wireless personal area networks that can transmit up to 722 kilobits per second (Kbps) within a 10-meter area. Protocol- a set of rules and procedures that govern transmission between the components in a network. Broadband- high-speed transmission technology. Also designates a single communications medium that can transmit multiple channels of data simultaneously. Radio frequency identification (RFID)- technology using tiny tags with embedded microchips containing data about an item and its location to transmit short- distance radio signals to special RFID readers that then pass the data on to a computer for processing. Bus topology- a network topology linking a number of computers by a single circuit with all messages broadcast to the entire network. Ring topology- a network topology in which all computers are linked by a closed loop in a manner that passes data in one direction from one/ computer to another. Cable Internet connections- the delivery of Internet service over a cable television infrastructure. What this means is that instead of using the standard telephone line to transfer data, a standard cable line is used in its place. Not only does using a cable Internet connection free up your telephone line for incoming calls, but, it also provides much higher transfer rates compared with what is Router- specialized communications processor that forwards packets of data from one network to another network.
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capable through a standard telephone line. Cell phone-
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This note was uploaded on 11/15/2010 for the course MIS MIS520 taught by Professor Roberts during the Spring '10 term at Metropolitan NY.

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Chapter 7 Key Terms - Chapter 7 Key Terms 3G networks-...

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