Computers solve mathematical and logical problems by receiving data at the data entry level, organizing them conveniently, and processing the receiving data. the processing results are then displayed on a computer monitor or printed on paper. Computers store data, information, or results in memory for as short a time as needed or forever.

• Data Input: The computer receives data and instructions through the keyboard or other input devices and processes them conveniently.
• Data processing: The received information is classified and code is added and these coded data are made usable by bringing a mathematically and logically convenient appearance.
• Data Output: Allow processing or analysis results to be displayed on a computer monitor or printed on paper.
• Data Storage: The computer stores data information or results for as long as needed or forever.

What are the characteristics of a computer?

• Speed: The first characteristic of a computer is its speed. Computers are capable of solving any complex problem very quickly.
• Storage Unit: The second feature of the computer is to keep a large amount of data in its storage and as needed, the required information can be found very easily from that large data storage.
• Accuracy: A computer solves any complex problem accurately or can produce very close to the true value.
• Exercise: Computers can work for hours without feeling tired and bored, which is not possible for humans.
• Versatility: Computers do a variety of tasks, For example, Education, Business, Research, Medical Affairs, etc.. can be performed.
• Repetition: The computer performs the same task or instruction repeatedly and accurately.

Computer facilities:

• Cost: The processing cost of work is reduced, resulting in more work being done at a lower cost.
• Speed: Can work very fast.
• Time: Time is saved as work is done very quickly.
• Solution: Any type of complex problem can be solved.
• Accuracy: Helps carry out any work accurately or close to the standard.
• Communication: It is possible to communicate with different parts of the world in a few seconds or milliseconds with the help of computers.

Difficulty Using Computer:

• Bad Effect of Viruses: Computer viruses destroy computer data or systems.
• Communication Deviations: When communication deviations occur, customers are deprived of proper service.
• Exact Instruction: The computer is a stupid box, so only correct instructions are given.

Use of computers in society:

Computers can perform a variety of tasks very quickly. Whether these tasks are mathematical or logical, Computers help us quickly get the true result or value close to the true result. So nowadays the scope of use and usage of computers in our daily life is increasing

In modern society the use of computers is increasing in all fields-

• At Home: The Internet is used at home for studying or other necessary work, and the computer is used to watch video games, movies, and cartoons, the use of a computer is incomparable to storing various information at home, We use the computer for all work of the house from depositing electricity bill, etc.
• In Education: Computers are used to prepare students’ Enrollment numbers, mark sheets, MCQ question papers, and student admission. Computers are of immense importance for finding out about different content on different subjects through the Internet.
• In the Field of Medicine: The importance of computers is immense for the diagnosis and treatment of patients, Computers are used for various types of surgery, Computers are used for CT Scans, etc.
• Regarding Commercial and Financial Matters: Computers are now used for commercial advertising, Commercial goods can be bought and sold online, computers are widely used in financial matters, and computers are now used for financial transactions in the stock market.
• Weather Forecasting: Weather forecasting is done with the help of computers and this forecasting is possible by collecting data through artificial satellites and analyzing them, this computer can also give warnings of earthquakes, monsoon storms, etc.

You must be aware that a computer is a machine that is used to store, manipulate, transmit, and receive information or data. There are different types of computers. Do you know how many types of computers have been invented till now? If you don’t know the answer to this question, there is no need to worry. In this article, readers will be able to learn about the different types of computers.

The first thing that you need is that computers can be categorized in two ways. Computers can either be differentiated based on their data handling capabilities or based on their sizes. If we take data handling capabilities into account, then there are three types of computers. These three types of computers are-

• Analog Computers
• Digital Computers
• Hybrid Computers

Computers can also be classified based on their computing power and speed and the categories of this type of classification are mentioned below-

• Personal Computer(PC): It is a type of signal-user computer system that has a moderately powerful microprocessor.
• Workstation: It is also a signal-user computer system but it has a more powerful microprocessor.
• Minicomputer: It is a multi-user computer system. It is capable of supporting hundreds of users all at the same time.
• Main Frame: It is a computer system that can be used for multiple users. It can support hundreds of users at the same time. It is different from minicomputers in terms of its software technology.
• Supercomputer: It is an incredibly fast computer system that is capable of executing hundreds of millions of instructions every second.

When people talk about computers, they refer to hardware and software. The parts of the computer you can see and touch are called hardware. The instructions are called computer programs or software. Data is the raw facts in the form of words, sounds, numbers, or pictures.

Internet:

1. Your computer connects to the router using TCP/IP and asks for a local IP address
2. The router responds and gives your computer the local IP address 192.3423.211.1
3. Your router requests an IP address to connect to the Internet. The ISP assigns your WAN address as 342.56.2334.23
4. While on the internet you request access to the computer hope server by entering the URL:…… using DNS that address is translated to an IP address 233.544.24.8 and that TCP/IP packet travels over multiple routers and computer until it reaches that address.
5. Your TCP/IP packet reaches its destination and communicates with the other computer it responds and repeats the above steps to get the data back to your computer.