Introduction To
Computers
A Computer Can only do 4 things
• Input
• Output
• Process
• Store data
What is a computer
• It is an electronic device
• Accepts data (Input)
• Manipulates data(process)
• Produces information(output )
What makes computers powerful?
• It can repeat the Input, processing, output cycle at very fast speeds
• Accurate
• It can store a lot of information
• Can communicate with other computers
Devices in a Computer System
What are The components of a computer
• Input devices
• CPU(Central Processing Unit)
• Memory
• Output Devices
• Storage devices
Input devices
•
Keyboard
•
Mouse
Output Devices
Display
Speaker
Robots
Storage Devices
• Hard Disk
• Solid state memory
• RAM