The computer is an electronic device which can perform mathematical calculations and operate at very high speed.
the world computer is derived from the word “ computer “ which means to calculate. the word calculate means you do some mathematical operations. It consists of the devices to enter the dating process it and gives the results. Data refers to the raw facts which are meaningless thus a computer is an electronic machine that can store process
What do you mean by Computer?
The word computer is derived from the word "Computare" which means to calculate. The word calculate means to do some mathematical Operations. It consists of the devices to enter the data, processes it, and give the results. Data refers to the raw facts which are meaningless. Thus a computer is an electronic machine that can store process and retrieve data as and when desired. So, it is called the data processor. The computer processes the raw data and gives meaningful information. The process of calculating data by the computer is called data processing.
Functionalities of a Computer
If we look at it in a very broad sense, any digital computer carries out the following five functions −
Step 1 − Takes data as input.
Step 2 − Stores the data/instructions in its memory and uses them as required.
Step 3 − Processes the data and converts it into useful information.
Step 4 − Generates the output.
Step 5 − Controls all the above four steps.
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