1. Revision Input Process output Software System software Application software Hardware is the physical part of a computer system,including all machines and their part Input device Mouse Keyboard Scanner Output device Printer Monitor speaker Double click Right click Minimize maximize close the window

2. A program consist of a series of commands Input device processing unit Output device Storage device Floppy dick Floppy disk driver Video disc Video disc player Octopus card Octopus reader SIM card mobile phone SD CARD digital camera I.E. Internet Explorer Recycle bin M.M.L.C. Multimedia Learning Centes Online Learning System

3. Online e-Library Computer game Quick Time Player http://www.quicktime.com/http://www.quicktime.com/ Window Media Player http://www.windowsmedia.com/http://www.windowsmedia.com/ Real Player http://www.real.com/http://www.real.com/ WINAMP http://winamp.com/http://winamp.com/ Computer-assisted Learning