Question

in which class the computer is requires

Answer 1

its necessary from class 5 or maybe 6th...
but it requires in all class..

Answer 2

there is no need of any computer .... u can practice it by in your school lab ... or if u have any doubt .. then u can ask through Ur teacher also ... but .. if u want to practice more then .. u can purchase it .. but u should have enough money to buy it.