1. 1 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 Network

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

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

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

5. 5 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) >. Internet: World Wide Web

6. 6 ITGS - introduction Internet: Web site

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

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

9. 9 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 Internet: Web site

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

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

12. 12 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) Internet: Search engine

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

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

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

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

17. 17 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 Internet: E-mail

18. 18 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. Internet Security – Malicious software

19. 19 ITGS - introduction FAQ: 1.Type text 2.Top of text scroll out  Where is text ? Word : Missed text

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

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

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

23. 23 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) PC : Internet

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

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

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

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

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