Advantage and Disadvantage of Internet: Computer Fundamentals
General Information Technology
Supplementary Material to
Teacher Resource Guide
Prepared by
Name: Mohamed Ismail Mohamed Nifras
Reg No: 2011/CSC/010
Index No:
Coordinated by
Dept of Computer Science,
University of Jaffna.
Table of Contents
Computer Fundamentals
Introduction to Computers
A computer is a man-made, programmable electronic machine that can store, retrieve, and process data according to a given set of instructions. Whatever information given to a computer is termed input. The computer input typically comprises of two things: Data and Instructions. The data are the facts, which are to be processed, and the instructions describe how the computer should process the data. The data which has been converted or organized into a more useful or intelligible form for direct utilization or helps human beings in their decision making process is typically termed information.
The heart of the computer is a microprocessor chip. Today microprocessors are embedded inside various every-day machines such as cars, television sets and washing machines. These microprocessors usually control some function of the machine and are hidden from the user. The term computer can virtually be applied to any such device that has a microprocessor in it. However most people describe a computer as a device that comprises of a keyboard, mouse, a central processing device and a screen.
Characteristics of Computers
Speed
A computer can perform tasks very fast.
The amount of work that a human being can do in an entire.
Accuracy
The accuracy of a computer is consistently high and the degree of accuracy of a particular computer depends upon its design.
Errors can occur in a computer, but these are mainly due to human mistakes.
Diligence
Unlike human beings, a computer is free from
Monotony
Tiredness
Lack of concentration
Versatility
A computer is capable of performing almost any task provided that the task can be reduced to a series of logical steps.
Power of Remembering
Every piece
Supplementary Material to
Teacher Resource Guide
Prepared by
Name: Mohamed Ismail Mohamed Nifras
Reg No: 2011/CSC/010
Index No:
Coordinated by
Dept of Computer Science,
University of Jaffna.
Table of Contents
Computer Fundamentals
Introduction to Computers
A computer is a man-made, programmable electronic machine that can store, retrieve, and process data according to a given set of instructions. Whatever information given to a computer is termed input. The computer input typically comprises of two things: Data and Instructions. The data are the facts, which are to be processed, and the instructions describe how the computer should process the data. The data which has been converted or organized into a more useful or intelligible form for direct utilization or helps human beings in their decision making process is typically termed information.
The heart of the computer is a microprocessor chip. Today microprocessors are embedded inside various every-day machines such as cars, television sets and washing machines. These microprocessors usually control some function of the machine and are hidden from the user. The term computer can virtually be applied to any such device that has a microprocessor in it. However most people describe a computer as a device that comprises of a keyboard, mouse, a central processing device and a screen.
Characteristics of Computers
Speed
A computer can perform tasks very fast.
The amount of work that a human being can do in an entire.
Accuracy
The accuracy of a computer is consistently high and the degree of accuracy of a particular computer depends upon its design.
Errors can occur in a computer, but these are mainly due to human mistakes.
Diligence
Unlike human beings, a computer is free from
Monotony
Tiredness
Lack of concentration
Versatility
A computer is capable of performing almost any task provided that the task can be reduced to a series of logical steps.
Power of Remembering
Every piece