1. Unit 7 PC SYSTEMS Unit 7: PC Systems Unit type: Certificate and Diploma Learning hours: 60 hours Unit level: 1

2. Summary of learning outcomes To achieve this unit learners must: Find out the key components of a PC system Explore different PC systems for a specified end-user Research a suitable PC for a specified end-user Develop user guidance for a specified end-user.

3. LESSON 1 Components of a PC system Let us first define what a system is:- A system is a collection of different working parts of anything which are connected together to produce a common product or goal. A computer system therefore has many such parts which are connected together for a common goal.

4. Components of a PC system The parts or components are:- Hardware: –motherboard, –RAM –CPU (Central Processing Unit), –Input Devices –Output Devices –Storage (Internal and External)

5. Components of a PC system The parts or components are:- Software: –Application software (eg word processing, presentation software), –Operating systems (eg Microsoft Windows XP) –DOS (disk operating system which uses command prompts)

6. Functions of the Components Hardware: –motherboard, –RAM –CPU (Central Processing Unit), –Input Devices –Output Devices –Storage (Internal and External)

7. Functions of the Components Hardware: –motherboard, What is the main function of the mother board? Choose the true statements below. It is a board on which all the components are interconnected It is a huge storage board for computer data It is a circuit board which links all electrical signals to various components The mother board is a piece of fiberglass upon which you mount the basic pieces of your computer It is (usually) a printed circuit board, and contains a minimum of the master clock and the CPU. It is a circuit sketching board which links all electrical signals

8. Some Parts of a Motherboard (Source:http://www.watchingthenet.com/wp- content/uploads/image/motherboard.jpg)

9. Task 1 In your own words describe the main functions of the Motherboard. Use one A4 sheet, font size 12 Arial or Tahoma.