INTERNET CHAPTER 12

Information Available The INTERNET contains a huge amount of information a huge amount of information information on any topic you can think of information on any topic you can think of information in the form of web pages information in the form of web pages Web Page Foundation

5 INTERNET SERVICES WORLD WIDE WEB (WWW): A collection of information held in multimedia form on web pages ELECTRONIC MAIL: Sending / receiving messages FILE TRANSFER: Downloading / uploading files between computer & server NEWSGROUPS: Subscribe to send & receive messages from people in the same interest group INTERNET RELAY CHAT: Having a ‘conversation’ by instantly sending & receiving messages online Foundation

BROWSERS Examples of browsers are: A browser is a program that allows the user to browse or surf through the World Wide Web INTERNET EXPLORER Firefox Foundation

MODEM A modem is needed when using a telephone line to connect to an internet service provider’s (ISP’s) computer when using a telephone line to connect to an internet service provider’s (ISP’s) computer at each end of the link at each end of the link Modem 1 Modem 2 Telephone Link Foundation

Internet Ready Computer An internet ready computer consists of: An internet ready computer consists of: Suitable COMMUNICATIONS SOFTWARE e.g. a browser & an client program MODEM external or internal COMPUTER SYSTEM Foundation

WORLD WIDE WEB A collection of information held on the internet on web pages A collection of information held on the internet on web pages Information is held in multimedia form Information is held in multimedia form e.g. text, graphics, sound, animation, movie Web Page Single document of information Single document of information Stored at locations (web sites) Stored at locations (web sites) Accessed using a browser Accessed using a browser Web Page General

HYPERLINK Click on a link to activate it Links between:  WWW pages  Documents  Files HTML  Hyper Text Mark-up Language  Computer language used to create web pages  Web authoring software makes it easy to create web pages HYPERLINK EXAMPLE General FEE'S wEBSITE:Welcome Welcome to My Website!

SEARCH ENGINES Designed to help find information Designed to help find information Enter keyword (s) to find related information Enter keyword (s) to find related information Examples are Google or Ask Examples are Google or Ask : COMPLEX search (C):  Searches using >1 criteria  Restricts search to certain parts of the web or selecting options from a menu  Can use AND, OR, NOT SIMPLE search (G):  One keyword entered into an entry box  A button or ENTER is pressed to activate the search  Related sites are found General There are 2 types of search:

INTERNET CONNECTION DIAL-UP Dial up connection using phone line Pay-as-you-go so adds to phone bill Slow performance speed Broadband Computer always connected to ISP Fast data transfer speeds Can use phone & internet together General

ONLINE When computer is connected to internet When computer is connected to internet When a dial-up connection is active When a dial-up connection is active OFFLINE When computer is not connected to internet When computer is not connected to internet When a dial-up connection is not active When a dial-up connection is not active Online Offline General INTERNET CONNECTION

INTERNET SERVICE PROVIDER An ISP company provides internet services: WWW, , file transfer, chat, newsgroups company provides internet services: WWW, , file transfer, chat, newsgroups can provide web storage, chat facilities & web mail. can provide web storage, chat facilities & web mail. Examples of ISP’s are AOL, BT, Tiscali Examples of ISP’s are AOL, BT, Tiscali Credit

DOWNLOADING SOFTWARE 3 types of software available for download Freeware Software Totally free and can be used on any number of computer systems Shareware Software Trial period then has to be paid for e.g. after 30 days Commercial Software It must be paid for to be used

MOBILE INTERNET TECHNOLOGIES The use of portable hardware to connect to the internet Are mobile internet technology examples Mobile Phone Palmtop Laptop

VIDEO CONFERENCING Using internet links to conduct meetings Using internet links to conduct meetings Meetings can take place between people who are large distances apart Meetings can take place between people who are large distances apart Hardware required is Hardware required is –webcam & screen –microphone & speakers Saves fuel, travel time but do not meet people face to face Saves fuel, travel time but do not meet people face to face

That’s all folks! Thanks for staying awake.