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FAQs on PPT: Internet Basics - Computer Awareness and Proficiency - SSC CGL

1. What is the Internet and how did it originate?
Ans. The Internet is a vast network of interconnected computers that communicate with each other using standardized protocols. Its origin dates back to the 1960s when the U.S. Department of Defense developed ARPANET, the first packet-switching network. By the 1980s, the network evolved into a global system, connecting universities, research institutions, and eventually the public. The World Wide Web, introduced in the early 1990s, made the Internet more accessible, allowing users to browse and share information easily.
2. What are the main components of the Internet?
Ans. The main components of the Internet include hardware, software, and protocols. Hardware consists of servers, routers, and computers that facilitate data transmission. Software includes web browsers, email clients, and applications that allow users to interact with the Internet. Protocols, such as Transmission Control Protocol (TCP) and Internet Protocol (IP), define how data is transmitted and ensure reliable communication across the network.
3. How does data transfer occur on the Internet?
Ans. Data transfer on the Internet occurs through a process called packet-switching. When data is sent, it is broken into smaller packets that travel independently across the network. Each packet is routed through various devices (like routers) based on the most efficient path available. Once all packets reach their destination, they are reassembled to form the original data. This method improves efficiency and reduces the likelihood of data loss.
4. What is the difference between the World Wide Web and the Internet?
Ans. The Internet and the World Wide Web are closely related but not the same. The Internet is the underlying network of computers and servers that connect globally, whereas the World Wide Web is a collection of information and resources that are accessed via the Internet using web browsers. Essentially, the Web is just one of many services running on the Internet, like email and file transfer.
5. What are some common Internet safety practices?
Ans. Common Internet safety practices include using strong, unique passwords for different accounts, enabling two-factor authentication, being cautious about sharing personal information online, and avoiding suspicious links or downloads. Additionally, using antivirus software and keeping it updated, regularly updating software applications, and being aware of privacy settings on social media can significantly enhance online security.
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