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Terms in this set (37)
Digital Communications
Describes a process in which two or more computers or devices transfer data, instructions, and information.
Network
A collection of computers and devices connected together via communication devices and transmission media.
Local Area Network / LAN
A network that connects computers and devices in a limited geographical area.
Wireless LAN / WLAN
A LAN that uses no physical wires.
Wide Area Network / WAN
A network that covers a large geographical area.
Personal Area Network (PAN)
A network that connects computers and devices in an individual's work space with wired and wireless technology.
Network Architecture
The configuration of computers, devices, and media on a network.
Network Topology
The layout of the computers and devices in a communication network.
Ethernet
A network standard that specifies no computer controls when data can be transmitted.
Token Ring
Standard specifies that computers and devices on the network share or pass a special signal.
TCP/IP
A network protocol that defines how messages (data) are routed from one end of a network to another.
Wi-Fi
Identifies any network based on the 802.11 standard that facilitates ow to wireless device over air.
Bluetooth
Defines how two ____ device use short-range radio waves to transmit data.
Ultra-Wideband (UWB)
Specifies how two UWB devices use short-range radio waves to communicate high speeds.
IrDA
Transmits data wirelessly via infrared (IR) light waves.
RFID
Uses radio signals to communicate with a tape placed in or attached to an object, animal, or a person.
NFC
Protocols based on RFID
Use close-range radio signals
Devices or objects should be placed within an inch or two of each other.
WiMAX (802.16)
Towers cab cover a 30-mile radius
Two types of fixed wireless and mobile wireless
Communication Software
Consists of programs and apps that help user establish a connection to another computer or network, manage the transmission of data, instructions, and information, provide an interface for users to communicate with one another.
ADSL
A type of DSL that supports faster transfer rates when receiving data.
Communication Device
Any type of hardware capable of transmitting data, instructions, and information between a sending device,
Broadband Modem
Sends and receives data and information to and from a digital line.
Wireless Modem
Uses a mobile phone provider's network to connect to the Internet wirelessly from a computer or other mobile device.
Wireless Access Point
A central communications device that allows computers and devices to transfer data wirelessly among themselves or to a wired network.
Router
Connects multiple computers or other routers together and transmits data to its correct destination on a network.
Network Card
Enables a computer or device to access a network.
Hub
A device that provides a central point for cables in a network.
Home Network
Where many home users connect multiple computers and devices together.
Transmission Media
Carries one or more communications signals.
Broadband
Media transit multiple signals simultaneously.
Bandwidth
The amount of data, instruction, and information that can travel over a communication media.
Latency
The time it takes a signal to travel from one location to another on a network.
Broadcast Radio
A wireless transmission medium that distributes radio signals through the air over long distances.
Cellular Radio
A form of broadcast radio that is used widely for mobile communications.
Microwaves
Radio waves that provide a high-speed signal transmission.
Communications Satellite
A space station that receives microwave signals from a Earth-based station, amplifies it, and broadcasts the signal over a wide area.
Global Positioning System (GPS)
A navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites in order to determine the receiver's geographic location.
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