Ict 9 module 4, lesson 2.3 techniques for diagnosing computer systems Ict 9 module 4, lesson 2.2 basic concepts of electricity Ict 9 module 4, lesson 2.1 safety precautions Ict 9 module 4, lesson 1.3 diagnosing computer systems Ict 9 module 4, lesson 1.2 types of computer system errors Ict 9 module 4, lesson 1.1 safety precautions Ict 9 module 4 introduction Ict 9 module 3, lesson 3 conducting test on the installed computer system Ict 9 module 3, lesson 2.5 basic computer configuration setup Ict 9 module 3, lesson 2.4.2 installing operating system (windows 7) Ict 9 module 3, lesson 2.4 installing operating system (windows xp) Ict 9 module 3, lesson 2.3 installation of hardware components and other peripherals Ict 9 module 3, lesson 2.1 safety precautions Ict 9 module 3, lesson 1.5 materials, tools, equipment and testing devices Ict 9 module 3, lesson 1.4 network 
