YOU SAID:

and i said what are you doing in my computer

INTO JAPANESE

あなたは私のコンピューターで何をしていると

BACK INTO ENGLISH

And what are you doing on my computer

INTO JAPANESE

自分のコンピューターでやっています。

BACK INTO ENGLISH

Doing it on your own computer.

INTO JAPANESE

自分のコンピューターにそれをやってください。

BACK INTO ENGLISH

Doing it on your own computer.