In this modern world all the work has been done by the used of compute. The computers have a myriad of applications in fields ranging from the arts to the sciences and from personal finance to enhanced communications. The computer has been used in all the field of the business and used in research in different matters.
Communication
Computers make all modern communications possible. They operate telephone switching systems, coordinate satellite launches and operations, help generate special effects for movies, and control the equipment in television and radio broadcasts. Internet links computers all over the world. So that it is possible to share and view the message, opinion, idea, and information in the short period of time. Journalists and writers use word processors to write articles and books, which they then submit electronically to publishers. 
Science and research
Scientists and researchers are those person who use the compute in there daily life for operating the activities. Computers help to finish the task in specific time. Scientists and researchers use computers in many ways to collect, store, manipulate, and analyze data. By the different research scientists collects the data and those data is entered in the computer, and the computer manipulates the data in order to show how the natural system is likely to behave under a variety of conditions. Thus it is useful in research and tests the new theories.
Industry and Education
Computer plays the vital role in the world of industry and in education. Computers help to develop the industries. IT is helpful to carry on the difficult task. In factories, computer-assisted manufacturing (CAM) programs help people plan complex production schedules, keep track of inventories and accounts, run automated assembly lines, and control robots. In the field of education, computers play the significance role to develop the skill for the student. It makes student mind vast, they can use the computer for getting more information in any subject.