Computers can be used in different fields.

Today , we are living in an era run by computers.

For every small problems computers come to the rescue.

Some of the common applications of computers we know are-

1. Personal use- Every house has a personal computer these days. People use PCs to play games , store data , education,etc.
2. Banking - Bankes use computers to store logs and logs of their customers data.
3. Education system- Most of the schools and colleges these days provide ecomputer education.
4. Many other fields like - railway reservation systems, other offices 

There can probably be many other applications you can relate to!

Thank you.