3 Internet Basics Internet is a collection of local, regional, national and international computer networks that are linked together to exchange data.

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Presentation transcript:

3 Internet Basics Internet is a collection of local, regional, national and international computer networks that are linked together to exchange data and distribute processing tasks.

4 Internet Terminology Backbone: defines main Internet routes Constructed and maintained by major telecommunications companies TCP/IP: Transmission Control Protocol/ Internet Protocol

5 Internet Terminology Server software IP Address: unique number for each Internet computer Packets: small chunks of data ready to travel the Internet Router: helps send along the packets to correct destination

6 Modem Internet Connections Dial-up connection via modem (56K) Cable modems Network card and cable modem required Always-on and 25 times faster than dial-up

7 Faster Internet Connections ISDN (Integrated Services Digital Network) 64K or 128K Always-on and expensive DSL (Digital Subscriber Line) Up to 125 times faster than dialup DSS (Digital Satellite Service) 500K

8 Internet Service Provider (ISP) Provides internet access to businesses, organizations and individuals Provides telecommunications equipment User ID and password required Connects you to backbone account monthly fee Should have local access telephone numbers

9 World Wide Web Basics Files interconnected via hypertext Web pages make up a web site Home Page Links or hyperlinks Web servers

10 World Wide Web URL No spaces and Case sensitive HTTP (Hypertext Transfer Protocol) HTML (Hypertext Markup Language).htm or.html file extension Document name and filename extensionFoldername Webservername Webprotocolstandard

11 Search Engines

12 Using Browsers Can type URLs HTML tags tell browser how to display web page data Back, forward and stop buttons Setting a home page Print and copy options History list Favorites and bookmarks Edit and Find

13 System servers Store-and-forward technology Types POP (Post Office Protocol) used via ISP IMAP (Internet Messaging Access Protocol) Web-based like Hotmail

14 System

BLOGS A blend of the term Web log Type of website or part of website a personal online journal frequently updated and intended for general public consumption. Blogs are defined by their format: a series of entries posted to a single page in reverse-chronological ordering.

BLOG IS A DIGITAL MAGAZINE Blogs are websites that are designed to engage an audience with fresh content – just like a magazine. If you are a blogger you are a publisher – no different than a print publisher. The cover of your magazine is the home page – your most recent content.

great way to share information on Internet

Types of Blogs Personal Blogs Corporate and Organisational Blogs Political blogs Travel blogs Artblogs Music blogs Legal blogs Video blogs or vlogs

Moblog blog written by a mobile device Microblogging featuring very short posts

Blogosphere A collective community of all blogs

Blog Day August 31

Advatages Exposure Knowledge New contacts Help others and get helped by others New opportunities open your own services to offer various type of customization, freelancing services to make money online. Career Journalism Blogging is Journalism. In oldtime writers write their article and wait to the publishers to publish their article. Now a day writer is a publisher. Writers don’t need to wait in a queue. They can publish any article online via blog media