Question

What are the various characteristics of computer?

Answer 1

1. Speed: - As you know computer can work very fast. It takes only few seconds for calculations that we take hours to complete. You will be surprised to know that computer can perform millions (1,000,000) of instructions and even more per second.

Therefore, we determine the speed of computer in terms of microsecond (10-6 part of a second) or nanosecond (10 to the power -9 part of a second). From this you can imagine how fast your computer performs work. 

2. Accuracy: - The degree of accuracy of computer is very high and every calculation is performed with the same accuracy. The accuracy level is 7

determined on the basis of design of computer. The errors in computer are due to human and inaccurate data.

3. Diligence: - A computer is free from tiredness, lack of concentration, fatigue, etc. It can work for hours without creating any error. If millions of calculations are to be performed, a computer will perform every calculation with the same accuracy. Due to this capability it overpowers human being in routine type of work. 

4. Versatility: - It means the capacity to perform completely different type of work. You may use your computer to prepare payroll slips. Next moment you may use it for inventory management or to prepare electric bills.

5. Power of Remembering: - Computer has the power of storing any amount of information or data. Any information can be stored and recalled as long as you require it, for any numbers of years. It depends entirely upon you how much data you want to store in a computer and when to lose or retrieve these data. 

Answer 2

Computer

Computers is an electronic device which is used for completing our work. It is being used by humans from so many years. And, Lots of changed had done in the computers in last 10 years. Because of computers, Life of Humans had changed totally.

Characteristics of computers:-

1. Computes make our work more easier. Because of which, we can do our hard work in less time and the complex calculations can be done rapidly with the help of computers
2. Computers are very easy to use. They are not so complicated to use, because of which computers become very important.
3. Storage: We can save our data and files in our computer. And, we can use that files when we have its need. Because of this file storage, Today we are able to see Videos, Photos and Music on our Mobile and computer.
4. Information: We can get the information of any kind of matter, Object, State and city with the help of computers. If computer is provided with the internet, then the computer can be used for various purposes.
5. If computer has internet connection, then, we can do online shopping, Payments, Booking, Near shops and many other things.

Components of Computer:

There are 5 basis components of computer, which helps computer system to run properly without any interruption. A computer system is designed in such a way that, every byte of information inputted should be processed properly, Such that user should get the required output. A computer system data transferring is very fast and efficient, so it takes a time less than a second to process and show the output.

i) Input Unit

- Input units reads the data provided from external environment.

- This data in the form of binary code is sent to the computer unit.

- Computer unit processes the information and provides the necessary output to the user.

ii) Output unit

- It accepts the information provided by computer system in binary codes.

- But, we humans can't understand that language, So, Output unit converts the information from binary language to Humans language.

- Output unit includes Monitor, Sound system etc.

iii) Storage unit

- Storing the data and information in memory provided to output unit as a history.

- Processing the files required to output unit while using programs, applications and games from storage devices.

iv) Central processing unit (CPU)

- Arithmetic logical unit and Logical unit are the important components of this system.

- Architecture of computer is designed in this CPU, such that, only supported devices can perform the operations. Like CPU designed by IBM cannot be used to run Mac OS.

v) Arithmetic and Logic unit (ALU)

- ALU is an important component of CPU

- ALU receives the data for processing from the temporary storage from the files called as "registers".

- All processing and computations are done by the ALU.

Uses of computers:

- Computers can be used for storing data and using it while it is required.

- Mathematical calculations can be done using computers.

- Computers can be also used for communicating through internet.

- Any kind of information can be achieved from the computers

- We can share our views with people using internet from computers.

- At higher level, Computers are used for weather predictions, medical science, space research, AI development and many more other things.

Types of computer:

i) Micro computer

ii) Macro computer

iii) Mini computer

iv) Mainframe computer

v) Supercomputer