Computer Technology

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                                 Computer Technology


Definition : 

A Computer is an electronic device that can perform activities that involve Mathematical, 
Logical and graphical manipulations. Generally, the term is used to describe a collection of devices that function together as a system.It performs the following three operations in sequence.

1. It receives data & instructions from the input device.
2. Processes the data as per instructions.
3. Provides the result (output) in a desired form.

Data : 

It is the collection of raw facts, figures & symbols.
 Ex : Names of students and their marks in different subjects listed in random order.
Information : It is the data that is processed & presented in an organized manner.
 Ex : When the names of students are arranged in alphabetical order, total and average marks are 
 calculated & presented in a tabular form, it is information.

Program :

 Set of instructions that enables a computer to perform a given task.
Advantages of computers : 
1. High speed : Computers have the ability to perform routine tasks at a greater speed than human 
beings. They can perform millions of calculations in seconds.
2. Accuracy : Computers are used to perform tasks in a way that ensures accuracy.
3. Storage : Computers can store large amount of information. Any item of data or any instruction 
stored in the memory can be retrieved by the computer at lightning speeds.
4. Automation : Computers can be instructed to perform complex tasks automatically ( which 
increases the productivity).
5. Diligence : Computers can perform the same task repeatedly & with the same accuracy without 
getting tired.
6. Versatility : Computers are flexible to perform both simple and complex tasks.
7. Cost effectiveness : Computers reduce the amount of paper work and human effort, thereby 
reducing costs.

Limitations of computers :

1. Computers need clear & complete instructions to perform a task accurately. If the instructions 
are not clear & complete, the computer will not produce the required result.
2. Computers cannot think.
3. Computers cannot learn by experience.

Reference            


TNAU - Tamilnadu Agriculture University, Coimbatore Materials And TNAU - Affiliated Private College Materials, TNAU Government College Materials, ICAR - Indian Council Of Agriculture Research, New Delhi Materials to Collected.

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