vocabulary and exercise: http://www.blairenglish.com/exercises/technology_web/exercises/computer_problems/computer_problems.html
you can read for more ideas here: http://www.blairenglish.com/exercises/technology_web/exercises/computers_verbs_of_movement/computers_verbs_of_movement.html and http://www.blairenglish.com/exercises/technology_web/exercises/technology_computer_networks/technology_computer_networks.html