PLEEEAAASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

hi im strugaling to get my arduino to type a key on the computer. i am new at using arduinos and i hear there are multaple steps involved but i dont have the slightest idea how to go about doing this. any code, info, tips would be helpfull. thanks. :-?

Use a servo.
Stop cross-posting.
Delete your off-topic cross-posts.
Get a spell-checker.