COMPUTER :
Computer is an electronic device which can perform various different tasks according to the instruction. It functions task accepting raw data as input, processes them and finally produces output.
Computer is an electronic device that is designed to work with information. The term computer is derived from the Latin term 'Computare' , this means to calculate. Charles Babbage is called the 'Father of Computer'. The first mechanical computer designed by Charles Babbage was called Analytical Engine. It uses read only memory in the form of punch cards.
Computer is an advanced electronic device that takes row data as input from the user and process these row data as input from the user and process these data under the control of set of instructions (called Program) and gives the result (Output) and save output for the future use. It can process both numerical and non-numerical (arithmetic and logical) calculations. A Typical modern computer uses LSI (Large Scale Integrations) Chips.
A Computer has four functions, these are given below:
Input Data ---> Input
Process Data ---> Processing
Produces Output ---> Output
Store Result ---> Storage
Input: The process of entering data and instructions into the computer system.
Processing: The process of transforming data into meaningful form by performing various operations
Output: The process of producing useful information or results for the user, such as a printed report or visual display
Storage: The process of saving and sorting data and instructions to make them readily available for initial or additional processing, as and when required.
Data is Raw fact
End user: who gets information from another user
What are different Activities of Computer?
It can use in scientific Research works. It can use in home, school, office, bank, hospital. It can use in plane.
What are the main objectives of computer?
To perform various task with in short time period.
To perform hard task easily.
To save valuable time of human.
To do various task according to the user‘s desire without doing mistake.
To save a lots of money of human.
To help human in every step of work being versatile
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