Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
|
Bluetooth
|
An omnidirectional wireless technology that provides limited-range voice and data transmission over the unlicensed 2.4-GHz frequency band, allowing connections with a wide vareity of fixed and portable devices that normally woud have to be cabled together.
|
|
|
Client
|
Computer that is designed to request information from a server.
|
|
|
Client/server network
|
A model for applications in which the buld of the back-end processing, such as perfroming a physical serach of a database, takes place on a server, while the front-end processing, which involves communication with the users, is handled by the clients.
|
|
|
Coaxial cable
|
Cable that can carry a wide range of frequencies with low signal loss.
|
|
|
Ethernet
|
A physical and data layer technology for LAN networking.
|
|
|
Fiber optic (or optical fiber)
|
The technology associated with the transmission of information as light impluses along a glass wire or fiber.
|
|
|
Geographic information system (GIS)
|
Designed to work with information that can be shown on a map.
|
|
|
Global positioning system (GPS)
|
A device that determines current latitude, longitude, speed, and direction of movement.
|
|
|
Interoperability
|
Capability of two or more computer systems to share data and resouces, even though they are made by different manufacturers.
|
|
|
Local area network (LAN)
|
Computer network that uses cables or radio signals to link two or more computers within a geopgraphically limited area, generally one building or a group of buildings.
|
|
|
Metropolitan area network (MAN)
|
A computer network that provides connectivity in a geographic area or region larger than that covered by a local area network, but smaller than the area covered by a wide area network.
|
|
|
Microwave transmitter
|
Commonly used to transmit network signal over great distances.
|
|
|
Network
|
A communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standrads, or protocls, so that they can work together.
|
|
|
Network operating system
|
The operating system that runs a network, steering information between computers and managing security and users.
|
|
|
Network topology
|
Refers to the geometric arragnement of the actual physical organization of the computers (and other network devices) in a network.
|
|
|
Network transmission media
|
Varios types of media used to carry the signal between computers.
|
|
|
Packet-switching
|
Occurs when the sening computer divide a message into a number of efficiently sized units called packets, each of which contains the address of the destination computer.
|
|
|
Peer-to-peer (P2P) network
|
Any network without a central file server and in which all computers in the network have access to the public files located on all other workstations.
|
|
|
Protocol
|
A standard that specifies the format of data as well as the rules to be followed during transmission.
|
|
|
Radio frequency identification (RFID)
|
Technologies using active or passive tags in the form of chips or smart lables that can store unique identifiers and relay this information to electronic readers.
|
|
|
Router
|
An intelligent connecting device that examines each packet of data it receives and then decides which way to send it onward toward its destination.
|
|
|
Server
|
Computer that is dedicated to providing information in response to external requests.
|
|
|
Telecommunication system
|
Enables the transmission of data over public or private networks.
|
|
|
Transmission Control Protocl/ Internet Protocol (TCP/IP)
|
Provides the technical foundation for the public Internet as well as for large numbers of private networks.
|
|
|
Twisted-pair wiring
|
A type of cable composed of four (or more) copper wires twisted around each other within a plastic sheath.
|
|
|
Valued-added network (VAN)
|
A private network, provided by a third party, for exchanging information through a high-capacity connection.
|
|
|
Virtual private network (VPN)
|
A way to use the public telecommunication infrastructure (e.g., Internet) to provide secure access to an organization's network.
|
|
|
Voice over IP (VoIP)
|
Used TCP/IP technology to transmit voice calls over long-distance telephone lines.
|
|
|
Wide area network (WAN)
|
Computer network that provides data communication services for business in geographically dispersed area (such as across a country or around the world).
|
|
|
Wire media
|
Transmission material manufactures so that signals will be confined to a narrow path and will behave predictably.
|
|
|
Wireless fidelity (wi-fi)
|
A means of linking computers using infrared or radio signals.
|
|
|
Wireless media
|
Natural parts of the Earth's environment that can be used as physical pathas to carry electrical signals.
|
