Chapter 1 : Basic Introduction to Computer

Computer is an electronic device, operating control instructions stored in its memory.

The components of a computer

• Input : Scanner, Web Cam, Mouse, Microphone, Keyboard
• Output : Printer, Speakers, Monitor, 
• Storage : Optical Disc Drive, Hard Disk Drive, USB Flash, Memory Card, Memory Card Reader, External Hard Disk

The system unit known as CPU can be part as processor, memory and storage devices. The Modem is is one kind of a communication device.

Advantages of using computers
-Speed
-Reliability
-Consistency
-Storage
-Communications

Disadvantages of using computers
-Health Risks (expose too much radioactive)
-Violation of Privacy (Facebook)
-Public Safety
-Impact of Labor Force (less human working, more rely on devices)
-Impact on Environment

Green computing - reducing the electricity consumed, environmental waste generated when using a computer.
Strategies for green computing : - Recycling, Regulating manufacturing processes, Extending the life of computers,  Immediate donate properly or disposing of replaced computers.

Network and Internet is a worldwide collection of networks and data. People use internet to Communicate, Research and Access Information, Shopping, Banking, Online Trading, Entertainment, Download videos, Web application.

Computer Software - Installing : to set up a a software to work with the computer, printer, and other hardware.