Date: Lesson Meeting people Lesson materials appendix lead in activity

APPENDIX 7. HOME TASK

Describe input and output devices

Computers consist of many devices. They are devided into two groups: input and output. Input devices are keyboard, scanner, joystick, trackball, mouse, stylus, digital web camera, microphone and etc. Output devices are speakers, headphones, printers, monitor, display devices.

Date:___________________________________

Lesson 11: The CPU (Central Processing Unit)
Lesson materials


A ppendix 1. Picture
Work in groups and guess the message of the picture.
The message of the picture is refered to that CPU is the brain of the computer.

Discuss elements of the CPU. Give the definition to a CPU.

CPU is the part of a computer that controls what it does. It consists of 3 major components: The Arithmetic and Logic Unit(ALU), The Memory Unit, The Control Unit(CU).