Telecommunications Definitions Flashcards
Learn about office tech
Define Telecommunications
Electronic communications of information over distance
Analogue Dial up
A modem is a device that converts a digital signal from a computer to an analogue signal that can be transmitted through ordinary phone lines. Ties up the phone lines
Telecommunications pipelines
Information transmitted by Telecommunication systems travel through channels called pipelines
Cable
Cable pipeline connects computers via coaxial cable to provide voice and data transmission. Have limited amount of bandwidth, large number of users can slow down internet speed.
Digital Subscriber Line DSL
A medium for transferring data over regular phone lines and can be used to connect internet.
Satellite
Telecommunications network provided by orbital communication systems
Wireless Connections
Uses radio frequency to transfer information between two or more points without the use of physical connection
Wireless fidelity WIFI
Wireless network set up for public
Fiber optics cables
Glass threads that can transmit large amounts of information at the speed of light
Internet
World wide public communications network tang connects private networks
Web Browser
The application of software used to access and view web pages . Internet Explorer, google, firefox
Search engine
Assists in finding information quickly by entering key words and phrases. Ask, google, binge and Yahoo
Webcasting
Broadcasting a live or recorded audio/video message over the internet
Web conferencing / Web meeting
Uses software to take part in a real time meeting via the internet from anywhere in the world
Webinar
A seminar presented over the internet
Sharepoint
Web application platform developed by Microsoft ised as a secure place to store , organize, share and access information from almost any device
Slideshare
Online presentation systems
Local Area Network LAN
Civ3rs small areas and links computers, printers and other devices within an office, building or several nearby
Metropolitan Are Network MAN
Connects across region or cities
Wide area Network WAN
Largest public network which is internet
Intranet
Private network that uses web and other web technology and cab inke be accessed by organizations employees through LAN or MAN
Extranet
Uses web technology but is available to certain individuals, companies and other outside the organization. Access is controlled by usernames and passwords. Ie banks
Computer virus
A piece of programming code that is capable of copying itself and tupickt can corrupt the system and destroy data
Malware and worms
A computer program that replicates itself in order to spread to other computers . Relies on security failures to access computers
Trojan Horses
A destructive program that masquerades a benign application. Claimed to rid your computer of virus but instead introduces them
Phishing
Tries to obtain financial and other confidential information from users, send an email that looks legitimate but contains a fake website that replicates the real one.
Spyware
Computer can get infected through email attachments or from free content you download from the internet. Intent is to spy
Hacking
Gaining access to a computer and viewing, copying or creating data to benefit by exposing weaknesses in a computer network
Spam
Send the same message indiscriminately to large njmbe roof recipient on the internet
Blue jacking
Hacking method that allows individuals to send anonymous, unsolicited messages to bluetooth enabled devices within a certain radius
Cookies
Files stored on your computer that allows websites to remember your information
Mousetrapping
Technique that forces users to stay on a specific website by disabling the back button
Page Jacking
Illegally copying a legitimate website content to another website designed to replicate the original website. Intent is to illegally direct traffic from the original site to the cloned one to get information on the user.
Pharming
Re-direvtinf website traffic through hacking hacker directs traffic to a fake website
