Some things are unacceptable to do on a computer,I am going to tell you 5 things. One thing is to download anything that will cause a virus. Another thing might be that you are not supposed to go to any websites that the teacher didn't tell you to go. You aren't supposed to send pictures to anyone.  You can't use any g-mails that are not yours. And the last thing is that your not supposed to send any messages to anyone.