Apr 16, 2024

#About Internet, #Concept of internet,#internet

What is Internet?è The Internet is a vast network that connects computers all over the world. Through the Internet, people can share information and communicate from anywhere with an Internet connection.

History of IternetèIn 1969, the U.S. Defense Department established an Advanced Research Project Agency (ARPA) for research purpose in the area of Defense. They designed a network of four computers to exchange and share their data, one in California and three in Utah. This network was called ARPANET. Later on, Department of Defense allowed the universities to join this network for sharing Hardware & software resources. This was the beginning of a concept which grew bigger and bigger and finally gave birth to the most popular term across the globe, the INTERNET.

Advantage of InternetèConnectivity, communication, and sharing, Information, knowledge, and learning, Address, mapping, and contact information, Selling and making money, Banking, bills, and shopping, Donations and funding, Donations and funding Work from home, collaboration, and access to a global workforce

Working of InternetèAll computers which have an access to the internet are connected with each other either through cables or satellite. All these computers use a NETWORKING PROTOCOL so as to understand each other in a network configuration like LAN, MAN or WAN.

Protocol: A set of rules which regulate data transmission among devices as well as within a network of linked devices.

While using Internet, the most common protocols are:

•  Transmission Control Protocol (TCP)
• Internet Protocol (IP)

The information that we send through the internet is broken into packets by TCP/IP. This protocol is responsible for sending these packets to the right address. The packets are sent to a local internet service provider (ISP). From here the packets travel through multiple level of networks, computers and communication lines before reaching the destination. This destination may be our own town or anywhere across the globe

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Who Control the Internetè

1.    INTERNET CORPORATION FOR ASSIGNED NAMES AND NUMBERS (ICANN)

2.    INTERNET ENGINEERING TASK FORCE (IETF)

3.    WORLD WIDE WEB CONSORTIUM(W3C)-Team Berners Lee

How a computer connects to the internet?

With the help of ISPs (Internet Service Providers) like BSNL, AIRTEL, JIO, Vi etc., we can connect our computer to the Internet but for this we need a very important device called Modem.

What is a MODEM?

Modem stands for Modulator DEModulator. We know that a computer only understands the language of ‘0’ and ‘1’ i.e. Binary Language. The modem from the sender’s side (Terminal /Web Server) modulates the digital data into a signal which is compatible with the telephone line, i.e. analog signals. The receiving modem at your workplace demodulates this analog signal back into digital data. Hence a modem modulates as well as demodulates the signal.

What is a Web Browser?

To find, retrieve, view and send information over the internet, a software known as web browser is required. A web browser helps in accessing and displaying web pages on the screen.

Some Browser name is:

Netscape Navigator, Internet Explorer, Google Chrome, Mozilla Firefox, Opera Mini, Safari

What is Web Page & Website?

q  Web Page is a HTML document which is used to produce information over web.

q  A Collection of related web pages is known as web pages.

q  Web is a term in the fields of information technology that is called World Wide Web(WWW(W3))

What is E-Mail? E-mail is one of the most popular forms of communication. E-mail conveys messages from one destination to another in a few seconds. Since these messages are communicated electronically, they are known as Electronic Mail or e-mail.

Free E-mail Providing Company NameèGmail, Zoho Mail, GMX Mail, Outlook.com, Yahoo! Mail, ProtonMail, AOL Mail, Guerrilla Mail, Mail.com, Mailfence

Search EngineèSearch Engine is a website which is a large collection of programs that scans the web for information that you request and displays links (Hyperlink) to that information. The users have to click on to Hyperlink to jump on that information.

ChattingèChatting is also a popular form of communication where the users communicate with each other in real time. You can receive instant replies to your messages. Although e-mail is a more expensive form of communication, unlike chatting, you cannot receive the response to the messages immediately. Ex-Whatsapp, IMO, Telegram

Types of Chatè1. Voice Chat 2. Message Chat 3. Video Chat

Video ConferencingèVideoconferencing is similar to chatting, but it also includes communicating sound and video pictures. It is a form of meeting in which participants in remote locations can see each other and carry on discussions using web cameras, microphones. Ex-Zoom, Skype

Internet Status or URLè An internet or web address(some times called URL-Uniform Resource Locator) is composed of four parts. Ex- http://www.google.com

Part1:- A Protocol Name it is a set of rules or standard that inable computers to interchange information. As for example-http (hyper text transfer protocol.

Part2:- The location of the site WWW(World Wide Web)

Part3:-The Name of organization that maintains the site. For example- yahoo & google

Part4:- Domain Name Example:- .com is a commercial Domain Name

What are Domain?èDomains are logical collection of website that divides the internet into many conceptual groups such as Educational, Commercial, military, government business etc.

Some of the major domains are:-

.com-Commercial, .edu-Educational, .org-Other organization or groups or individuals, .mil-military institute, .net-Network Service Provider

DownloadingèDownloading means your computer is receiving data from the Internet.

UploadingèUploading means sending data or a file from your computer to somewhere on the Internet.