A BULLETIN BOARD-an electronic noticeboard system that enables users to display messages for

other users to read

PAGER - An electronic device, that receives messages and signals the user by beeping or vibrating

BACKING UP- making a copy of computer files and programmes to keep them safe

BROWSER-a programme for viewing webpages

BUGS-faults in the programmes

DATABASE-a type of applications programme used for storing info so that it can be easily searched

and sorted

DIGITAL SIGNALS electronic signals that have only two states, off or on

DOWNLOAD-copying files from a server computer to a client computer

DNS(Domain Name Server)-when a user clicks on a hyperlink on a webpage, the browser programme

contacts a server computer known as a DNS server to look up the IP address of the remote Web

server computer given in the URL of the linked webpage

FTP(file transfer protocol)-copying files e.g. programme files, between computers on a

network.copying files from a server comp uter to a client computer (downloading) and copying from

a client to a server (uploading)

GPS(Global Positioning System)-receiver uses a microprocessor to compare coded digital signals from

special satellites orbiting the Earth to calculate latitude, longitude and altitude, and enable user the

user to determine their exact location

HACKING- Unauthorized attempts to bypass the security mechanisms of an information system or network

HIJACKING-redirecting anyone trying to visit a certain site elsewhere

HOMEPAGE-The starting webpage of a website

HTTP-is known as the protocol prefix and indicates that the hypertext transfer protocol shpild be

used to transfer the webpage across the Internet

HYPERLINKS- the links on a webpage that the reader can directly follow and can be displayed if the

reader clicks on it

ISP internet service provider: a company that offers its customers access to the Internet

IRC(Internet relay chat)-chatting to other users using text messages in real-time

MAILBOMBING-Flooding and email address with thousands of messages, slowing or even crashing

the server

MICROPROCESSOR-the main electronic chip in a computer that does the maing processing and

controls the other parts of the computer

MODEM-modulator/demodulator-an electronic device that converts signals to enable a computer to

be connected to an ordinary telephone line

MOOs(Multi-user domain that is object-oriented)-taking part in simulations in a shared environment.

MOST COMPUTER-MEDIATED COMMUNICATION(CMC)-the participants are not on line at the same

time and there are delays between messages(asynchronous), depends on participants being on line

at the same time(synchronous)

NAVIGATION SYSTEM a way of allowing visitors to move from webpage to webpage and find their

way around our website

PASSWORD- - A secret word or phrase that must be used to gain admission to something PUTTING UP A SITE-copying newly created website to a Web server computer

SALAMI SHAVING-mainpulating programmes or data so that small amounts of money are deducted from a large number of accounts and accumulated elsewhere PIRACY- the unauthorized use, reproduction, distribution, or transmission of copyrighted material SPOOFING-tricking a user into revealing confidential onformation such as an access code or a credit

card number

TO REGISTER-open an official account

TRAPDOORS- An illicit programme that allows unauthorised and unknown entry

TROJAN HORSE- - a program that appears desirable but actually contains something harmful; "the contents of a trojan can be a virus or a worm URL-Uniform Source Locator-consists of a number of separate parts divided by forward slashes

WAP(Wireless application protocol)-a common protocol used with mobile phones, messages are

divided into small called packets, allows mobile phone users to use Internet online services such as

email and browsing webpages on the WWW

WEBPAGE - a document connected to the World Wide Web and viewable by anyone connected to the internet who has a web browser

WEBSITE- A set of releated documents stored on a web server

WEBSERVER- A server computer that stores and provides access to webpages

STREAMING- A method of downloading video signals using a storage buffer to obtain a steady

display

WILDCARDS-special symbols that can be used with keywords

HTML - Hypertext Markup Language, a standardized system for tagging text files to achieve font, color, graphic, and hyperlink effects on World Wide Web pages

WML - Wireless Markup Language, it enables text from Web pages to be displayed on cellular phones

Virus - a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer

Motherboard - circuit board containing the principal components of a microcomputer or other device, with connectors into which other circuit boards can be slotted

Computer crashing failing suddenly and completely

Rebooting restarting the computer operating system

CMC - Computer Mediated Communication

Synchronous internet relay chat

Asynchronous delays between massages

XML- Extensible Markup Language

Internet- The Internet is a worldwide set of interconnected networks.

The internet is a local set of interconnected networks.

STORAGE BUFFER- a part of RAM used for temporary storage of data that is waiting to be sent to a

device