COMPUTER NETWORKING

COMPUTER NETWORKING. MADE BY ATIKESH PAREEK CLASS – 9 TH A.

Computer - What is computer A computer is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware program. It has the ability to accept data (input), process it, and then produce outputs..

What is an internet? An internet connects two or more networks. When you join two or more networks to share information and resources, you create an internet. An internet is different from the Internet. What is the Internet? The Internet is a vast internetwork that connects hundreds of millions of computing devices throughout the world. Traditional desktops, PCs, laptops, mobile phones, web cameras, printers, TVs, gaming consoles, security appliances, home appliances, automobiles, environmental sensing devices, and traffic lights are examples of computing devices that are connected to the Internet. What are the differences between an internet and the Internet? An internet is a small network that connects some networks. If you have two or more networks, you can create your internet to connect them. An internet is mainly used to provide connectivity between networks that belong to a single administrative entity, such as a company or an organization. The Internet is the largest computer network in the world. The Internet provides connectivity between all connected networks throughout the world. You can connect your network to the Internet, but you can’t control or modify the Internet. The Internet is used for many services..

Usages of the Internet The Internet is used for many purposes. The most common usages are the following. Getting information The Internet is the biggest source of the information. You can use the Internet to read newspapers and watch live news channels. Many companies publish their public information, research, and white papers on the Internet. You can use them to get information about a specific topic or know about a particular person or a thing. For example, you can use the Internet to find out who is the CEO of Google or Amazon, who is Volodymyr Zelensky , what is the latest cricket or football match score, what is the weather condition, and much more. Entertainment Many people use the Internet for entertainment. On the Internet, you can watch movies, listen to music, play games, and do many other activities. Many companies provide these facilities via mobile apps. Mobile apps allow you to access these resources directly on your mobile phone. If you have a mobile phone and the mobile phone is connected to the Internet, you can use such an app to watch the latest TV shows, live matches, movies, and listen to music. Netflix, Amazon prime videos, and Disney+ Hotstar are some examples of mobile apps that provide these facilities ..

Education The Internet allows teachers, instructors, and trainers to connect and teach their students and audiences virtually. By using the Internet, anyone can learn from anywhere in the world. For example, many colleges and universities provide online courses for all locations. Students can join these courses and earn certificates. In the recent Covid-19 pandemic, many schools used the Internet to provide virtual classes to their students. Business Companies and organizations use the Internet in many ways to expand their business. For example, they can use the Internet to show, list, and sell their products. Many companies have their business only on the Internet. Amazon, JioMart , Snapdeal , and Mantra are examples of companies that sell products online. You can also use the Internet to sell your products or buy products from other online sellers. Social networking The Internet allows people to connect with other people. Many social networking sites and apps allow you to connect, chat, and share events with your friends and family. Facebook, WhatsApp , and LinkedIn are some examples of websites and apps that provide social networking features..

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Digital payment People use the Internet to make digital payments. Many companies such as PayPal and Payoneer allow users to send or receive payments in digital mode. Banks offer the net banking facility to their customers. Some countries also have unique payment gateways. For example, India has UPI. UPI allows Indians to pay utility bills and send or receive money in real-time. Scientific usages The Internet allows many scientists from different geo-locations to work on the same project. They can also publish their research and reports on their websites, newsletters, and forums. Weather forecasting is one of the most common examples of the scientific use of the Internet. The weather department shares weather prediction reports on the Internet. By reading these reports, you can learn about the possible weather condition of a particular place. Security usages Many departments (such as police and defense ), companies, and organizations use the Internet for security purposes. You can use the Internet to access your security devices from a remote location. For example, you can install an IP web camera in your home and access it from your office. Navigation Many companies such as Google and Apple provide navigation services on the Internet. The navigation service offers step-by-step instructions to reach the destination. You can use this service to find and visit a place or a location..

Advantages of the Internet The main advantages of the Internet are the following. Allow a user to connect, communicate, and chat with other users. Allow a user to share its events, photos, and videos with friends and family Allow companies to expand their businesses Allow sellers to accept digital payments Allow users to purchase things and pay bills from their homes Allow users to watch movies, matches, and the latest TV shows on their mobiles Allow users to find and visit any place or location.

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Disadvantages of the Internet The main disadvantages of the Internet are the following. Hackers use the Internet to steal money, personal information, and sensitive documents. If you use pirated software without any antivirus program and firewall, hackers can easily hack your computer and steal your private data. Many people use the Internet to cheat other users. They use fake emails and websites, spam messages, and phishing links to deceive users. Generally, they send a fake link to the user. If the user clicks the link, they cheat the user. The Internet increases the expenses of people. People are getting used to using the Internet all the time. To use the Internet, they have to recharge their Internet connection. Many times, they exhaust their data limit and pay more to get additional data. The Internet puts a negative effect on health. With the help of the Internet, people can do most of their work directly from home. Because of this, they walk less and spend more time looking at mobiles or computers. Walking less and watching more on a computer or mobile screen causes many health problems.