Easy&understandable PowerPoint Presentation for Students.

1. Presented by -
Ashish Ablani

2. ELEMENTS OF COMPUTER SYSTEM
 There are two major elements :-
• Hardware
• Software

3. COMPUTER HARDWARE
 Physical components of computer which can be
Physically feeled and touched
 Divided in three groups :-
 Input device
 Output device
 System unit

4. INPUT DEVICES
key board
 Key board is Used to type data in computer

5. Mouse
 Pointing and moving objects

6. Joystick
 Commonly used to computer games

7. Light Pen
 A device used to draw, write or issue command on
a specially designed screen

8. Scanner
 It allows you to scan documents to see “soft copy”
on your screen

9. Microphone
 It makes you to input sound in your computer

10. Output Devices
Monitor
 It provide soft copy output of your information on screen

11. Printer
 It produces texts and graphics on “Paper ’’

12. Multimedia Projector
 Displays video, images or other computer data on big
flat surface

13. Speakers
 Play sound transmitted as “electrical signals” from the
“sound card”

14. System Unit
Mother board (System board)
 The main circuit board of “Micro computer”

15. CPU
 Carries out each instruction of program in sequence to
perform basic input/output operations of system

16. Power Supply
 Supplies “power” from the “power supply” to the “drive”

17. Memory
Two fundamental types
Primary (RAM) Secondary (hard drive)

18. Floppy disc drive
 Used to store and retrieves information from a
Floppy disc

19. CD/DVD drive
 Reads information stored on a “Compact Disc”

20. Any Questions ?

21. - Ashish Ablani