Term
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Definition
| describes a process in which two or more computers or devices transfer data, instructions, and information |
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Term
Uses of Computer Communications: Messaging
Text messaging |
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Definition
| allows users to send and receive short text messages on a phone or other mobile device or computer |
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Term
Uses of Computer Communications: Messaging
Picture messaging |
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Definition
| allows users to send pictures and sound files |
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Term
Uses of Computer Communications: Messaging
Video messaging |
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Definition
| allows users to send short video clips |
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Term
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Definition
| is a coffeehouse, restaurant, or other location that provides personal computers with Internet access to its customers |
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Term
| global positioning system (GPS) |
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Definition
| is 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 GPS receiver’s geographic location. Integrated into mobile devices, handhelds, new vehicles |
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Term
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Definition
| includes tools that enable users to share documents via online meetings and communicate with other connected users. |
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Term
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Definition
| is a collection of computers and devices connected together via communications devices and transmission media |
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Term
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Definition
Facilitating communications
Sharing hardware
Sharing data and information
Sharing software |
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Term
Network Types
wide area network (WAN) |
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Definition
| is a network that connects computers and devices over a broad area (metropolitan, regional, and national boundaries). |
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Term
Network Types
a wired network |
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Definition
is a network that connects computers and devices in a limited geographical area
network uses wireless technology such as microwave, satellite, radio/spread spectrum, and infrared technologies |
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Term
Network Types
local area network (LAN) |
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Definition
| A wired network uses media such as twisted-pair copper, coaxial cable, and optical fiber. |
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Term
Network Types
wireless LAN (WLAN) |
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Definition
| is a LAN that uses no physical wires |
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Term
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Definition
| refers to the layout of the computers and devices in a communications network |
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Term
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Definition
| is an internal network that uses Internet technologies |
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Term
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Definition
| allows customers or suppliers to access part of its intranet |
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Term
Network Communication Standards: Standards Groups
IEEE (Institute of Electrical and Electronics Engineers |
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Definition
international professional association
IEEE Standards (e.g. 802.x) |
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Term
Network Communication Standards: Standards Groups
IETF (Internet Engineering Task Force) |
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Definition
international open standards organization
IETF Request for Comments (RFC) |
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Term
Network Communication Standards: Standards Groups
ISO (International Organization for Standardization |
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Definition
| international standard-setting body |
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Term
Network Communication Standards: Standards Groups
SIG (Special Interest Group) |
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Definition
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Term
Network Communication Standards: Standards Groups
Ethernet |
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Definition
| is a network standard (IEEE 802.3) that specifies no computer controls when data can be transmitted |
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Term
Network Communication Standards: Standards Groups
The token ring standard (IEEE 802.5 – inactive) |
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Definition
| specified that computers and devices on the network would share or pass a special signal (token) |
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Term
Network Communication Standards: Standards Groups
TCP/IP (Transmission Control Protocol/Internet Protocol) |
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Definition
| is a network standard (IETF RFC 675+) that defines how messages are routed from one end of a network to another |
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Term
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Definition
| identifies any network based on the IEEE 802.11 standard that facilitates wireless communication. |
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Term
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Definition
| Sometimes referred to as wireless Ethernet |
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Term
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Definition
| “Wi-Fi CERTIFIED” – Wi-Fi Alliance |
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Term
Network Communication Standards:
Bluetooth (IEEE 802.15.1 – no longer maintained by IEEE, now maintained by Bluetooth SIG) |
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Definition
| defines how two Bluetooth devices use short-range radio waves to transmit data |
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Term
Network Communication Standards:
IrDA (Infrared Data Association) (IrDA standard) |
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Definition
| transmits data wirelessly via infrared (IR) light waves |
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Term
Network Communication Standards
RFID (ISO standard) |
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Definition
| uses radio signals to communicate with a tag placed in or attached to an object, animal, or person |
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Term
Network Communication Standards
WiMAX (IEEE 802.16) |
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Definition
| is a high-speed, long-distance (30-mile radius) tower-based wireless protocol. |
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Term
| The public switched telephone network |
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Definition
| (PSTN) is the worldwide telephone system |
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Term
Communications Over the Telephone Network
Communications Over the Telephone Network
Dial-Up Line |
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Definition
Temporary analog connection
(POTS – “Plain Old Telephone System) |
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Term
Communications Over the Telephone Communications Over the Telephone Network
Dedicated Line |
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Definition
Permanent (“always-on”) connection
Analog or digital |
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Term
Communications Over the Telephone Network: Dedicated Lines
ISDN (Integrated Services Digital Network) |
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Definition
Digital transmission over standard copper telephone lines
Becoming obsolete |
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Term
Communications Over the Telephone Network: Dedicated Lines
DSL (Digital Subscriber Line) |
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Definition
Similar to, but faster than, ISDN
ADSL (asymmetric DSL): faster downloads, slower uploads |
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Term
Communications Over the Telephone Network: Dedicated Lines
FTTP (Fiber to the Premises) |
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Definition
Fiber optic cable
FTTH (Fiber to the Home), FTTB (Fiber to the Building) |
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Term
Communications Over the Telephone Network: Dedicated Lines
T-carrier |
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Definition
Digital
T1 (fractional or dedicated), T3 |
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Term
Communications Over the Telephone Network: Dedicated Lines
ATM (Asynchronous Transfer Mode) |
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Definition
| eventually will become the Internet standard for data transmission |
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Term
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Definition
| is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device |
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Term
| Modem (modulator-demodulator) |
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Definition
A dial-up modem converts signals between analog and digital
A digital modem sends and receives data and information to and from a digital line |
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Term
Communications Devices: Network Cards
network card |
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Definition
enables a computer or device to access a network
Wireless network cards often have an antenna |
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Term
Communications Devices: Network Cards
A wireless access point |
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Definition
| is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to a wired network |
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Term
Communications Devices: Network Cards
router |
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Definition
| connects multiple computers or other routers together and transmits data to its correct destination on a network |
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Term
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Definition
| The amount of data that can travel over a communications channel sometimes |
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Term
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Definition
| carries one or more signals |
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Term
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Definition
| media transmit multiple signals simultaneously |
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Term
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Definition
| Relationships between two or more sets of values |
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Term
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Definition
Similar to line, but filled areas
Watch out for obscured data points |
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Term
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Definition
Pie chart for multiple data sets
Must be labelled properly |
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