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ITGS - introduction

Network. ITGS - introduction. A computer may have: a direct connection to a net (cable); or remote access (modem). Connect network to other network through: cables wireless, etc. Internet: Services. ITGS - introduction. What can we do? e-Mail World Wide Web Forum Chat Game.

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ITGS - introduction

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  1. Network ITGS - introduction • A computer may have: • a direct connection to a net (cable); • or remote access (modem). • Connect network to other network through: • cables • wireless, etc

  2. Internet: Services ITGS - introduction • What can we do? • e-Mail • World Wide Web • Forum • Chat • Game

  3. Internet: Services ITGS - introduction • What can we do? • Send a message • Study materials • Download software • Get medical advices • Live radio • Discussions • Stock market • Buy & sell • Information from libraries

  4. Internet: Dark side ITGS - introduction • What are the dark sides?

  5. Internet: World Wide Web ITGS - introduction WWW is made up of interlinked documents called Web pages. Web pages = text + pictures Web site = a collection of related web pages stored on the same computer. Home page = an entry page of web site. Web site has a unique address (URL) >.

  6. Internet: Web site ITGS - introduction

  7. Internet: World Wide Web ITGS - introduction Uniform resource locator URL (address) http://www. Domen http://www.znanje.org Hyper >

  8. Internet: Web site ITGS - introduction • Contains: • text • pictures • animation • audio • video • Links >

  9. Internet: Web site ITGS - introduction • Hypertext system (random jumping) • Reading the pages in own order (Reader) • Hyperlink – link to: • the same document (Web page) • the same Web site • the domain • any Internet file

  10. Internet: Web site ITGS - introduction • How to find your way to back? • Web browser • Back and forward buttons • Bookmark or favorites (add to favorites)

  11. Internet: Search engine ITGS - introduction • Search engine: Database that catalogs Web locations based on content • How to find information? • Indexed collection of information stored in computer.

  12. Internet: Search engine ITGS - introduction To find information: Type a keyword or keywords into a search field click a button, and wait a frew seconds for your Web browser to display a list of hits. (automatic ranking)

  13. Internet: Search engine ITGS - introduction • Another way to use a search engine: • a directory • subject tree • a hierarchical catalog of Web sites compiled by researchers (Yahoo)

  14. Internet: Search engine ITGS - introduction May large Web sites include Search buttons that enable you to search for site-specific information.

  15. Internet: ISP ITGS - introduction • Connect to the Internet • ISP • Education network

  16. Internet: ISP ITGS - introduction • Connect to the Internet • Wire ( • Wireless

  17. Internet: E-mail ITGS - introduction • Internet Electronic mail (E-mail): • User name (login name or alias) • Mailbox (storage area) • Inbox () • Waiting for send • Attachment • Host name • firstname_lastname@hostname.com

  18. Internet Security – Malicious software ITGS - introduction • Internet Security: • Spam-unwanted email from unknown sender) • Spam filters. • Hackers (malicious programmers). • Identity (ID) theft. • S&E: After receiving spam someone will ask is using the Internet good or not.

  19. Word : Missed text ITGS - introduction FAQ: • Type text • Top of text scroll out • Where is text ?

  20. File ITGS - introduction • Social & Ethical issues Privacy • Content (someone read your document)

  21. File ITGS - introduction • Social & Ethical issues Integrity change • Content (hacker change document or use document) • Content (someone change your document on your PC)

  22. PC : Network ITGS - introduction Is it possible to connect different computer networks: • Yes (which) • No (why)

  23. PC : Internet ITGS - introduction Hyperlinks can point to Web-pages: • at the same location (why) • at location made by the same author (why) • at different locations (where you want)

  24. PC : Internet ITGS - introduction E-mail address is: • user_ name@host_name • host_ name@user_name

  25. PC : Internet ITGS - introduction Search engine can search files on your PC: • Yes (which) • No (why)

  26. PC : Internet ITGS - introduction Which type of file we can send as attachment: • All • Someone (which) • None (why)

  27. PC : Internet ITGS - introduction We can use key on keyboard to return to the screen previously displayed in the browser window: • Yes (which) • No (why)

  28. Word : Jumbled the Words ITGS - introduction Put them in the correct order : C • Select

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