This slide is about computer .

1. What is Computer
Prepared and Present By:
Nasratullah-Ahmadi

2. Computer
‫کمپیوتر‬
Computer is an electronic device which
processes our data.
Generally Computer is Divided into Two Parts
Hardware Software

3. Hardware
All the physical parts of computer, which
we can touch are called hardware.
For Example
C.P.U Printer
Monitor Scanner
Mouse Digital Camera
Key Board Speakers

4. Software
All the programs of computer that we
can’t touch are called Software.
For Example.
Ms. Windows 95 – 98 – Xp – Me – 2000
Ms, Office ( Word, Excel,Power Point,Access)
Corel Draw, Photo Shop and ETC.

5. Software is Divided into Two Parts
System Software Application Software
We can’t use our computer without System Software
We can use our computer without Application Software

6. System Software
System software is the Operating System of Computer,
The computer can’t be operated without system software
Operating System
Interface between user and computer is called Operating system
Ms. Dos Ms. Windows 2000Professional
Ms. Windows 95 Ms. Windows Me
Ms. Windows 98 Unix, Linux
Ms. Windows Xp

7. Application Software
Application software is the Programs of computer.
The computer can be operated without application software
Ms. Office ( Word, Excel, PowerPoint, Access)
Corel Draw
Photoshop
And ETC.

8. Hardware is Divided into Four Parts
Input Device Output Device Memory Device Control Device
Used to insert the data.
Used To Control the Computer
Used to display the data.
Used to keep the data

9. Input Devices
Keyboard Joystick
Mouse Web cam
Scanner Microphone

10. Output Device
Monitor Speaker
Printer Projector

11. Memory Device
Main Memory Supporting Memory
We can’t Operate Computer Without Main Memory
We can Operate Computer Without Supporting Memory
Hard Disk Floppy
CD
Ram Flash Memory

12. Control Device
1:- Processor
2:- Main Board / Mother Board
3:- Power Supply

13. Input And Output Devices
Digital Camera Networking Card
Sound Card
Modem T.V Card

14. Central Processing
Unite (C.P.U)
Floppy Drive

15. Hard Disk

16. Floppy Drive and Floppy
Disk
Floppy Disk
Floppy Drive