1. D (start up - to turn on the computer to start its working);2. F (log on - to do the things that will allow you to start using a computer system, for example by typing in your password);3. B (log off - to do the actions that you have to do when you finish using a computer system);4. A (key (smth) in to put information into a computer using a keyboard);5. E (shut down E to turn off the computer);6. C (print out - to make a paper copy of something on a computer).