Help me please

My father thinks I stay on the computer the whole day, because when he wakes up he sees me on it and when he come back from work he sees me on it. While actually when he is at work, I memorize some pages from the holy Quran, play in my garden, help mom in stuff or do other things!Now what should I do? How to I let him know I don't stay on the computer the whole day?!

maybe when he comes home from work just do one of those things you said.

I know it's a bad idea but just a suggestion

Show him the computer history, maybe? Or just figure out what time he comes home and be doing something else then.

Just show your dad you do other things when he gets home...

Umm... maybe try explaining your situation? Talk to him in a nice tone when he tries to accuse you explain to him everything you just said. If he's reasonable, he'll understand. If you act slightly annoyed, this might help you gain credibility.