Question

How computer is a useful device?

Answer 1

it helps in our day to day lives

used in banks for transactions
used in school ,hospitals and banks for maintaining the records
helps in recreation and entertainment
it also helps the qovernment
used for defence purpose.


besides this there are many other uses.

Answer 2

computer is a useful device because in computer we can store lots of data and if we want to see the data we had stored we can access it later.