aBy the development of science and technology in last 100 years, the life style of human being is changing every second. And
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INTRODUCTION TO IT (INFORMATION TECHNOLOGY)
COURSE INSTRUCTOR
DEPARTMENT OF COMPUTER SCIENCE,
UNIVERSITY OF AGRICULTURE, FAISALABAD.
INFORMATION TECHNOLOGY (IT)
IT is the use of modern technology to aid the capture, processing, Storage and Communication of Information. Whether in the form of numerical data, Text, Sound or image.
IT APPLICATIONS
e-education Example virtual university
e-commerce
e-mail etc.
The arts etc.
WHAT IS A COMPUTER
WHAT DOES A COMPUTER DO
WHY IS A COMPUTER SO POWERFUL
Speed
Reliability
Storage
COMPONENTS OF A COMPUTER
Input
System Unit
Output
Secondary Storage
CATEGORIES OF COMPUTERS
Hand-held Computers
Palmtop
Laptop
Pen Computers
Desktop Computers
Workstations
Servers
Mini Computers
Mainframe Computers
Super Computers
CATEGORIES OF COMPUTERS
Computers are generally classified according to their Size, Speed, Processing Capabilities and Price.
PERSONAL COMPUTERS (PCS)
These are small systems.
Hand Held Computers are designed for a specific purpose such as meter reading.
Palmtop Computers often have several built functions such as a calendar to week-track of meetings, events and phone file.
Notebook Computers are small enough to be carried in a briefcase...