1. Introduction to Computer
Introduction to Computer

2.  Computer definition
Is an electronic machine which to store and
manipulate data to extract information

3. Computer Features
Speed-1
​
Resolution-2
The possibility of storage-3
Communications network-4

4. Computer components
Computer components
Software
Software
Hardware
Hardware

5. Hardware
1. (Processing Unit).
2. (Memory Unit).
3. (Input Units).
4. (Output Units).
5. (Storage Unit).

6. )Processing Unit(
Arithmetic and Logic Unit
”“ALU
Control Unit
The unit of measurement speed of the
CPU is Almijahrtz MHz

7. (Memory Unit)
Types of Memory
ROM
Do not lose its contents
when the device is
switched off
RAM
Lose its contents once the
device is switched off

8. Input Units
Bar code
reader
Keyboard
Scanner
Mouse Keyboard

9. Output Units
Printer
Speakers
Monitor

10. The units are used for
input and output
Touch monitor
Devices and infrared units and
Bluetooth modules

11. Storage Unit
External storage units
(Floppy disk)
Internal storage units
Hard Disks))

12. Storage Unit
.
Storage Unit
DVD
DVD
CD-ROM
CD-ROM
Floppy Disks
Floppy Disks
Hard Disks
Hard Disks
.