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Introduction of Computers (Computer Applications In Society (Education,…
Introduction of Computers
What is computer?
Computer is an electronic device, operating under the control of instructions stored in its own memoory
Advantages of using computers
Reliability
Consistency
Speed
Storage
Communications
Disadvanges of using computers
Health Risk
Violation of Privacy
Public Safety
Impact on Labor Force
Impact on Environment
Elements of an Information System
Hardware
Software
Data
People
Procedures
Categories of Computers
Personal computers (desktop)
perform in processing, input, output and storage
Mobile computers and mobile devices
mobile computers
you can carry anywhere
eg. netbooks, ultra-thins and Tablet PCs
Mobile Devices
small enough to hold in your hand
smart phones, e-book reader and digital cameras
Games consoled
A mobile computing device designed for single-player or multiplayer video games
Servers
controls access to the hard ware, software and other resources on a network
Mainframes
A large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneosly
Supercomputers
the fastest, most powerful computer
Embedded computers
Consumer electronic
Home Automatic Devices
Automobiles
Process Controllers and Robotics
Computers Devices and Office Machines
Example of Computer Device
home user
Small Office/Home Office User
Mobile User
Power User
Enterprise User
Computer Applications In Society
Education
Finance
Government
Health Care
Science
Publishing
Travel
Manufacturing