Observe Yourself or -5

1. Observe Yourself or -5 • Turn off communication devices • Dress properly

2. Module10Internet application

3. Internet Application • Remote access (Terminal emulation) • Telnet • File transfer • FTP • Communication & Sharing data • E-mail & Mailing List • Instant Messaging • Discussion group • Newsgroup • Video Conference • Search • Search Engine • Portal • E-Commerce

4. Telnet A program that allows users to connect to remote computers to control, manage account space, check email, etc.

5. File Transfer Protocol (FTP) • FTP is a protocol used to transfer files from one computer to another through a network • a method whereby you can connect to a remote computer called an FTP site and transfer files to your own microcomputer’s hard disk.

6. Communication & Sharing Data Services

7. Conventional and Internet Telephone

8. Telephone & Computer Network are separated

9. RJ-45's are 8-wire and meant for LAN. • RJ-11's are 6-wire, smaller, and meant for phone.

10. Telephone System Conventional Phone Internet Telephony • Public Switched Telephone Network (PSTN) uses • Communication occurs by dedicated connecting circuit between two points duration the call. • It uses • Voice travels by Individual packets may take different paths to the same place.

11. Two Systems for Conventional Phone • PSTN (public network) • PBX (private network)

12. PBX • Private Branch Exchange (PBXs) • Private telephone switching system that connects telephone extension in house or office and connect them to public switched telephone network (PSTN)

14. VoIP • Voice over Internet Protocol (VoIP, Voice over IP) is a general term for a family of methodologies, communication protocols, and transmission technologies for delivery of voice communications and multimedia sessions • Other terms frequently encountered and synonymous with VoIP are • IP phone • IP telephony • Internet telephony • Internet phone • voice over broadband (VoBB), • broadband telephony, and • broadband phone.

15. Internet Telephony Or VoIP phone (Voice over Internet Protocol): using the Internet to make phone calls, either one-to-one or for audio-conferencing. Example of s/w : • Skype • Fringe • Microsoft NetMeeting

16. Advantage and Disadvantage of VoIP Advantage Disadvantage • Low cost • PC to PC phone calls anywhere in the world for free. • PC to Phone has a charge but much cheaper than regular phone. • No service during a power outage • Quality and Reliability • VOIP relies on quality of Internet connection. Poor Internet connection and congestion can result in poor voice quality, such as clipping, voice delay, or dropped calls.

17. Types of VoIP Phone

18. Dedicated VoIP Phone

19. Softphone

20. Videophone / Video Call

21. Videoconferencing • It is a set of interactive telecommunicationtechnologies which allow two or more locations to interact via two-way video and audio transmissions simultaneously. It has also been called 'visual collaboration' and is a type of groupware.

22. Text-Based Communication

23. Email • Electronic mail, email or e-mail • It is a method of exchanging digital messages across the Internet.

24. E-Mail Addresses mvickers@sales.abc.com User name: mvickers Domain name: sales.abc Top-level domain: .com

25. Smail • Snail + Mail

26. Spam: Unwanted Junk E-Mail • Delete without opening the message • Never reply to a spam message! • Enlist the help of your ISP or use spam filters

27. Mailing Lists • E-Mail-Based Discussion Groups • A listserv is an automatic mailing-list server that sends email to subscribers who regularly participate in discussion topics.

28. Newsgroup • Newsgroup - a giant electronic bulletin board on which users conduct written discussions about a specific subject.

29. Realtime Text-Based Communication • Realtime: • Offline:

30. Instant Messaging Allows any user on a given e-mail system to send a message and have it pop up instantly on the screen of anyone else logged onto that system

31. Blogs • Or web log, a diary-style web page. • Keeping journals which are accessible to other users. • Blogs are often updated daily and reflect the personality and views of the blogger. • EX:Blog

32. Social Network

33. Social Network • A social network is a social structure made up of individuals (or organizations) called "nodes," which are tied (connected) by one or more specific types of interdependency, such as friendship, kinship, common interest, financial exchange, dislike, sexual relationships, or relationships of beliefs, knowledge or prestige.

34. Facebook was born in the year 2004 by three Harvard University students • Mark Zuckerberg • Dustin Moskovitz • Chris Huges • Its purpose is to put students in touch with one another, share their photos and meet new people. • The site has grown from Zuckerburg's vision of connecting the Harvard campus to connecting users across the Internet.

35. Search Service

36. There are a huge number of web site around the world. • How do we search information on the Internet?

37. Types of Search Sites

38. Web Directory (Book Style) • List Urls by web site category. • The categorization is based on the whole web site. • Do not index the contents of web sites. • Updating cycle is slow because printing process takes time. This makes web directory book out of date.

39. Web Directory (Online Style) • It allows you to search for information by selecting lists of categories or topics, such as “Business and Commerce” or “Arts and Humanities.” • Updating a new web site can do online. Hence, directory is up-to-date. • Manual categorization.

41. Keyword Search • A keyword search allows you to search for information by typing one or more keywords, and the search engine then displays a list of web pages, or “hits”, that contain those key words.

42. Search Engine • It is a program that enable you to ask questions or use keywords to help locate information on the web. • Search engines are huge catalogs of Web sites that let you find specific Web pages. By entering keywords. • Search engine will return a list of relevant documents and their links. • The more information you can provide in your search criteria, the more accurate the results a search engine will return.

44. How search service gathers information? • Human-organized search sites • Computer-created search sites

45. Human-organized search sites • Based on human judgement • Whereas computers can’t discriminate in organizing data, humans can judge data for relevance and categorize items in ways that are useful to you.

46. Computer-created search sites • Use “spiders” that crawl all over the web and send back reports to be collected and organized with little human intervention. • Google ranks listings by popularity as well as by how well they match the request. • Some search engines rank results of a search according to who paid the most money for top billing

47. How Search Engine gathers information? • To find information of the millions of Web pages, a search engine uses special software robots, called • It crawls through the web by • When a spider is building its lists, the process is called

48. Metasearch Engine

49. Portal service

50. Web portal • It is a type of gateway website, offer a broad array of resources and services. • Website that groups together in one convenient location popular features such as search tools, e-mail, electronic commerce, and discussion groups, news, weather, travel information, links to other popular subject categories.