Something's wrong with the computer. 'It's 8am. You've got 15 frantic minutes to complete that assignment that you have to submit. And just when you're about to add the finishing touches, the cruelest thing happens. Your computer breaks down. As tempting as it might be, don't reach for that sledgehammer. Call a computer service technician who installs, maintains, diagnoses faults and repairs computer hardware. They replace circuit boards, repair or replace hardware components such as printers or CD-ROMS and they replace worn-out connections.
Figures and ComputationalPractical and Manual