Internet and Its Uses

Internet and Its Uses:

• The term 'Internet' has been coined by the combination of two words namely "inter-connectivity" and "networks". Therefore, it is called the network of networks. It is a vast pool of resources and offers different opportunities to different people.
• The internet links are computer networks all over the world so that users can share resources and communicate with each other. Some computers have direct access to all the facilities on the internet such as the universities. And other computers, for example, privately owned have indirect links through a commercial service provider who offers some or all of the internet facilities.

In the Question:

Interconnected networks __________________

The Answer is Interconnected networks.They're connections between nodes where each node can be a single processor or a group of processors or memory modules.

Hence the Option D is Correct.

The development of the internet can be traced back to the 1950s, but it gained significant momentum and evolved through the subsequent decades. Here is a brief overview of key developments in each of the mentioned decades:

1950s:

• Early Concepts: The idea of a global network of computers was proposed in the late 1950s. One of the notable events was J.C.R. Licklider's vision of an "Intergalactic Computer Network" in 1962.

1960s:

• ARPANET: The Advanced Research Projects Agency Network (ARPANET) was created by the U.S. Department of Defense in the late 1960s (first established in 1969) and is often considered the precursor to the modern internet. It connected computers at research institutions and universities.
• Packet Switching: Paul Baran and Donald Davies separately developed the concept of packet switching, a fundamental technology for data transmission over networks.

1970s:

• TCP/IP: The Transmission Control Protocol/Internet Protocol (TCP/IP) was developed by Vinton Cerf, Bob Kahn, and others in the early 1970s. It standardized communications on networks, laying the groundwork for the modern internet.
• Email and Usenet: The 1970s saw the development of email protocols such as SMTP (Simple Mail Transfer Protocol) and the creation of Usenet, a precursor to online forums and discussion groups.

1980s:

• Domain Name System (DNS): The DNS was introduced in the early 1980s, providing a way to map human-readable domain names to IP addresses, making the internet more user-friendly.
• World Wide Web: While the internet infrastructure existed, it was in the late 1980s and early 1990s that Tim Berners-Lee and others developed the World Wide Web, including HTML, HTTP, and the first web browser (like Mosaic), making the internet accessible to a broader audience.

Hence option A is the correct .

Internet and Its Uses:

• The term 'Internet' has been coined by the combination of two words namely "inter-connectivity" and "networks". Therefore, it is called the network of networks. It is a vast pool of resources and offers different opportunities to different people.
• The internet links are computer networks all over the world so that users can share resources and communicate with each other. Some computers have direct access to all the facilities on the internet such as the universities. And other computers, for example, privately owned have indirect links through a commercial service provider who offers some or all of the internet facilities.

History of Internet:

The Internet has its root in the ARPANET system of the( Advanced Research project Agency Network)of the U.S Department of Defense. ARPANET was the first WAN and had only four sites in 1969.The internet evolved from the basic ideas of ARPANET for interconnecting computers and was initially used by research organizations and universities to share and exchange information.In 1989,the U.S. Government lifted restriction on the use of the internet and allowed it to be used for commercial purpose as well.since then,the internet has rapidly grown to become the world's largest network. It now interconnects more than 30,000 networks,allowing more than 10 million computers and more than 50 Million computer users in more than 150 Countries around the World to communicate each other.The internet continues to grow at a rapid race.

Uses of Internet:

1. Email: By using internet, we can communicate in a fraction of second with a person who is sitting in the other part of the world. Today, for better communication, we can avail the facilities of e-mail.  We can chat for hours with our loved ones. There are many messenger services and e-mail services offering this service for free.

2. Information: The biggest advantage that internet offers is information. The internet and the World Wide Web have made it easy for anyone to access information. Any kind of information on any topic is available on the Internet.

3. Business: World trade has seen a big boom with the help of the internet, as it has become easier for buyers and sellers to communicate and also to advertise their sites. Nowadays, most of the people are using online classified sites to buy, sell or advertising their products or services. A classified site saves lot of money and time, so this is chosen as a medium by most of the people to advertise their products

4. Social Networking: Today, social networking sites have become an important part of the online Community Almost all users use it for personal and business purposes. It is an awesome place to network with many entrepreneurs who come here to begin building their own personal and business brands.

In the Question:

Which of the following statement is Incorrect?

(i)The term 'Internet' has been coined by the combination of two words .

(ii)ARPANET was the Second  WAN and had only two sites in 1969.

(iii)E-mail is also known as Electronic Mail.

The Answer is Only (ii).

Hence the Option C is Correct.