31 terms

Telecommunications

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Telecommunications
refers to the electronic transmission and reception of signals for voice and data communications.
infrastructure
refers to the hardware, software, and protocols that support telecommunications.
Telecommunications signals
analog or digital electronic transmissions for the purpose of communication
broadband and high-speed internet
refer to a connection that is always on or active, such as cable and DSL
Telecommunications media
include anything that carries a signal and creates an interface between a sending device and a receiving device.
Examples of Telecommunications media
Twisted pair copper cable, coaxial cable, fiber-optic cable,
Radio spectrum
part of the electromagnetic spectrum, refers to all of the frequencies available for radio waves from about 10 KHz to 300 GHz and their assigned uses
Telecommunications devices
include the wide variety of computer hardware designed to support telecommunications activities for individuals and businesses.
Telecommunications software
software based on telecommunications protocols used to control, monitor, and troubleshoot data traveling over a telecommunications network.
cellular network
a radio network in which a geographic area is divided into cells with a transceiver antenna (tower) and station at the center of each cell, to support wireless mobile communications.
cellular carrier
a company that builds and maintains a cellular network and provides cell phone service to the public
Global System for Mobile Communications (GSM)
the most popular international standard for mobile phones.
Code Division Multiple Access (CDMA)
networking standard is predominantly used in the United States, where it is in equal competition with GSM.
cellular plan
defines the terms of service provided by a cellular carrier to which a cellular user subscribes
Cellular services
include specific features of a cell phone plan other than voice communication, which is assumed—such as text messaging, high-speed Internet, and streamed media.
Cellular headset
refers to the phone used by the subscriber to communicate on the cellular network.
pager
is a small, lightweight device that receives signals from transmitters for the purpose of communications and messaging.
Wireless data communications
refers to telecommunications that take place over the air for data and Internet access
Wi-fi (wireless fidelity)
is wireless networking technology that uses access points to wirelessly connect users to networks within a range of 250-1000 feet (75-300 meters).
WiMax (Worldwide Interoperability for Microwave Access)
also known as IEEE 802.16, is a so-called fourth-generation wireless broadband technology that evolved from Wi-Fi to provide faster Internet access at a longer range.
Long Term Evolution (LTE)
a fourth-generation wireless broadband technology that was developed to allow GSM cellular technology to evolve to provide very high-speed Internet access
Bluetooth
enables a wide assortment of digital devices to communicate directly with each other wirelessly over short distances.
RFID, or radio frequency identification
uses tiny transponders in tags that can be attached to merchandise or other objects and read wirelessly using an RFID reader, typically for inventory and supply chain management or to facilitate commercial transactions.
GPS (global positioning system)
uses satellites to pinpoint the location of objects on earth.
computer network
a collection of computing devices connected together to share resources such as files, software, processors, storage, printers, and Internet connections.
Personal Are Network (PAN)
the interconnection of personal information technology devices, typically wirelessly, within the range of an individual.
home network
a local area network designed for personal or business use in the home.
local area network
a privately owned computer network that connects computers and devices within the same building or local geographic area.
wide are network
connects LANs and MANs between cities, across a country, and around the world using microwave and satellite transmission or telephone lines
global or international network
WAN that crosses an international border is considered
LAN
becomes a WAN when it extends beyond one geographic location to another geographic location.