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Chpt 3 Terminology
Telecommunications and Network Technologies
| Question | Answer |
|---|---|
| A leased, private telephone connection linking business telephones in two locations. | Tie Line |
| System that includes the networks of several organizations internationally; the Internet is the world’s largest. | Global network |
| An organization-wide information system that integrates key business processes so information flows freely between different divisions. | Enterprise network |
| Device that converts/modulates digital data codes from computer system into analog signals for transmission on telephone lines & demodulates received analog signals into digital data codes for computer system required at both receiving & sending locations | Modem |
| A private multi-media, multi-path, third-party managed, medium-speed wide area network shared by multiple organizations; services provided include network management, e-mail, electronic data interchange, and security. | Value Added Network (VAN) |
| A telephone call for three or more people to talk with one another. | Audio Conference |
| Networks are networked to accomplish integrated operations and link common processing tasks. | Collaborative computing |
| A communication processor that provides connection between two similar networks. | Bridge |
| Allows one communication channel to carry data from multiple sources at the same time; required at both the receiving and sending locations. | Multiplexer |
| A toll-free call for the caller by dialing a toll-free area code and telephone number; the party with the toll-free number pays for the call. | Inward wide area telephone services (INWATS) |
| A cell phone enhanced to capture photographic images that can be immediately sent to other camera phone users along with a message, downloaded to computers, or posted on the Internet. | Camera phone |
| The exchange of voice, data, text, graphics, or audio and video information over computer-based networks. | Telecommunications |
| A special telephone service that provides customers a local number when calling a business located in another city; the toll charge for the called is billed to the listed number. | Foreign exchange |
| An expansion card that connects the microcomputer to a network enabling the exchange of data between computers. | Network Interface Card (NIC) |
| A private network that supports communication within an office, building or firm at lower computer costs for the company by linking electronic devices so data can be shared easily and at greater speeds than otherwise provided. | Local Area Network (LAN) |
| Line channels that are continuous; the three line channels are twisted wire, coaxial cable, and fiber optic cable. | Tethered Line |
| A telephone system where each extension is assigned a seven-digit number for direct outward and direct inward dialing. | Central exchange system (CENTREX) |
| A network configuration used in local area and wide area telecommunications networks; three basic configurations are bus, star, and ring. | Network topology |
| A computer-based telephone communication system for automated telephone switching and management. | Computerized branch exchange (CBX) |
| Used by many organizations for intranet and extranet security when the Internet is the network backbone. | Virtual private network |
| Processing data in a mainframe or supercomputer with users entering data from local input devices. | Centralized computing |
| A small, specialized computer that communicates with the main computer system and manages all routine telecommunications tasks. | Front-end Processor |
| Widely used form of distributed computing where a microcomputer, mid-range computer, or a mainframe is a server to its clients; data storage and management, processing logic, and an interface are shared between the server and client. | Client/server computing |
| A high-capacity digital transmission over existing twisted copper telephone lines from the office or home to the telephone switching station. | Digital Subscriber Line (DSL) |
| A fixed monthly subscription for national, regional, or state area calls. | Wide area telephone service (WATS) |
| A communication processor that connects two dissimilar networks and translate the differences between the systems so the computers can communicate with one another. | Gateway |
| Form of distributed computing where all computers on the network can access organizational data/application software/public files/peripherals connected to network | Peer-to-peer computing |
| Converting data into digital information called bits. | Digitizing |
| Direct dialing an overseas call by using the international access code, the code for the country called, the city or area code, and the local telephone number. | International Direct-Distance Dialing (IDDD) |
| Telephones designed to accommodate individuals with disabilities. | Text telephone (TT) |
| Low-power radio frequencies or infrared technologies to transmit digital communications between communication devices. | Wireless channel |
| Connecting local area networks with fiber optic cable for high-speed data transmission within a small geographic area. | Metropolitian Area Network (MAN) |
| A special purpose computer that accepts and transmits voice and data using regular telephone lines; no special wiring is required. | Private branch exchange (PBX) |
Created by:
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