Characteristics of Computer: 

1. High Speed 

• Computer is a very fast device.
• It is capable of performing calculation of very large amount of data. 
• The computer has units of speed in microsecond, nanosecond, and even the pico second. 
• It can perform millions of calculations in a few seconds as compared to man who will spend many months for doing the same task. 

2. Accuracy 

• In addition to being very fast, computers are very accurate. 
• The calculations are 100% error free. 
• Computers perform all jobs with 100% accuracy provided that correct input has been given. 

3. Storage Capability 

• Memory is a very important characteristic of computers. 
• It can store large amount of data. 
• It can store any type of data such as images, videos, text, audio and many others. 

4. Diligence 

• Unlike human beings, a computer is free from monotony, tiredness and lack of concentration. 
• It can work continuously without any error and boredom. 
• It can do repeated work with same speed and accuracy. 

5. Versatility 

• A computer is a very versatile machine. 
• This machine can be used to solve the problems related to various fields. 
• At one instance, it may be solving a complex scientific problem and the very next moment it may be playing a card game. 

6. Reliability

• A computer is a reliable machine. 
• Modern electronic components have long lives. 
• Computers are designed to make maintenance easy. 

7. Automation 

• Computer is an automatic machine.
• Automation means ability to perform the given task automatically. 
• Once a program is given to computer i.e., stored in computer memory, the program and instruction can control the program execution without human interaction. 

8. Reduction in Paper Work 

• The use of computers for data processing in an organization leads to reduction in paper work and results in speeding up the process.
• As data in electronic files can be retrieved as and when required, the problem of maintenance of large number of paper files gets reduced.