ITGS introduction Network A computer may have a

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

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

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

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

ITGS - introduction Internet: World Wide Web WWW is made up of interlinked documents called 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) >. 5

ITGS - introduction Internet: Web site 6

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

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

ITGS - introduction Internet: Web site 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 9

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

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

ITGS - introduction Internet: Search engine 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) 12

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

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

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

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

ITGS - introduction Internet: E-mail 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 17

ITGS - introduction Internet Security – Malicious software 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. 18

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

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

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

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

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

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

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

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

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

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