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BTT1OI Unit 2

Review for Unit 2 Test

Node An individual computer that is attached to a network
Standalone A computer that is not part of the network
Network Allows computers to communicate with each other and enables them to share files, documents, hardware devices
Router (Hub) Specialized computers that send messages along thousands of pathways. They direct the flow of data packets (info gets broken up into smaller units) to the right location .
Modem Modulator/demodulator – A communication device that turns digital tones (computer) into analog (sound waves) and vice versa to allow the sending of information over telephone or cable lines.
Intranet Network designed for within an organization
Extranet An extension of an intranet within an organization that includes the World Wide Web
Infrastructure The basic underlying framework of a system – how all computers are joined together.
Anti-virus Software Programs that are used to detect, disinfect or repair viruses on a computer
Infection When a virus has been detected in your computer system – either dormant or active.
Encryption Method of encoding material before it is sent by telecommunications – provides secure data
Internet Consists of thousands of connected networks around the world
Internet Service Provider A company that offers a connection to the Internet for a fee.
Internet Protocol The set of rules/procedures that allow information to pass between networks.
Website A group of HTML documents made up of text, images, video and hyperlinks.
Email A method of composing, sending, and receiving messages over electronic communication systems
URL Uniform Resource Locator – an address on the Internet
Search Engine A method of searching for specific items on the Internet
Cookies A small amount of structured data that is shared between a web server and the web browser – cookies are saved after exiting from the site.
Download To copy a file (words, picture, sound) from one location to another through computers.
Validity A term that means “based on facts”. The validity or truthfulness of the information gathered from the Internet should be evaluated.
Copyright The exclusive rights of authors and artists to copy, publish and sell their material.
Hyperlinks A way of jumping from one site to another – usually refers to the Internet – will lead to another website or a location on the page.
Created by: Mrs. Emms