Intro to Computer

1. Computer Systems

2. Hardware & Software
Physical part of the computer are called Hardware.
• Processor
• Monitor
• Keyboard
Hardware:

3. Hardware & Software
Computer programs that perform a task or tasks on a
computer system.
•MS Office (MS word etc.)
Software

4. PC Components
Computer system -
Inter connected devices that share CPU & peripheral
devices.
Main parts are:
1. System unit
2. Monitor
3. Keyboard
4. Mouse
5. Speakers
2
3
4
5
1

5. System Unit
The system unit contain different electronic
components of computer used to process data
Typical system unit devices include:
• Motherboard
• CPU (Processor)
• Memory
• Disk drives
• Ports
• Power supply
• Expansion cards.

6. System Devices
• It read & execute instruction into the computer
The main processor manufacturers are:
• AMD - AMD FX
• Intel - Pentium
Processor
AMD
Processor

7. System Devices
•Primary storage - temporary
•Volatile - contents of memory are lost if the computer is
turned off
Random Access Memory (RAM)
IC’s
Memory
Module

8. System Devices
•Secondary storage - Permanent
•Non Volatile - Contents of memory are not lost if the
computer is turned off
Read Only Memory (ROM)