OBJECTIVES:

1. OBJECTIVES: • Define the term computer • State at least 2 parts of a desktop computer • Give three things a computer can be used for • Give three examples of a PC • Explain what the ‘boot process’ is • Express the importance of computers in schools and the society.

2. Computers are everywhere. They are in homes, schools, businesses, health care, sports and even entertainment. A computer is an electronic device that is used to make work easier. Computers are used for research, homework, typing letters, stories, memos, communicating with others, playing games, watching movies, mathematical operations and statistics etc. A computer may have four main parts; monitor, keyboard, mouse and system unit.

3. What is a computer? A computer is an electronic device that is used to make work easier.

4. TYPES/CATEGORIES OF COMPUTER • MICROCOMPUTER / PERSONAL COMPUTER (PC) • SUPERCOMPUTER • MAINFRAME • MINICOMPUTER

5. SUPERCOMPUTER

6. MAINFRAME

7. USES OF A COMPUTER • Gaming • Typing • Presentation • Music • Research • Learning tool • Monitoring • Entertainment • Science/medicine • Mathematical operation and statistics • Databases • Graphic designing • News and Sports

8. EXAMPLES OF PERSONAL COMPUTER • Desktop Computers • Laptops/Notebooks • Smart Phones/Smart watches • PDA

9. Desktop Computer A desktop Computer is so called because it was made to be used on a desk. A desktop computer has four (4) main parts:

10. 1. Monitor

11. 2. System Unit

12. 3. Mouse

13. 4. Keyboard

14. BOOT The process of starting up a computer by pressing the power button(s) is called boot (or the boot process).

15. What name is given to the following?

21. Minicomputer

22. Smart Phones Samsung Galaxy IPOD I Phone

23. Smart Watches

24. IPAD

25. Interactive Whiteboard

26. Tablet / Graphic Tablet

27. Netbook

28. PDA