Basic of computer programming

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Introduction to Computer Program

Before getting into computer programming, let us first understand computer programs and what they do.
A computer program is a sequence of instructions written using a Computer Programming Language to perform a specified task by the computer.
The two important terms that we have used in the above definition are −
  • Sequence of instructions
  • Computer Programming Language
To understand these terms, consider a situation when someone asks you about how to go to a nearby KFC. What exactly do you do to tell him the way to go to KFC?
You will use Human Language to tell the way to go to KFC, something as follows −
First go straight, after half kilometer, take left from the red light and then drive around one kilometer and you will find KFC at the right.
Here, you have used English Language to give several steps to be taken to reach KFC. If they are followed in the following sequence, then you will reach KFC −
1. Go straight
2. Drive half kilometer
3. Take left
4. Drive around one kilometer
5. Search for KFC at your right side
Now, try to map the situation with a computer program. The above sequence of instructions is actually a Human Programwritten in English Language, which instructs on how to reach KFC from a given starting point. This same sequence could have been given in Spanish, Hindi, Arabic, or any other human language, provided the person seeking direction knows any of these languages.
Now, let's go back and try to understand a computer program, which is a sequence of instructions written in a Computer Language to perform a specified task by the computer. Following is a simple program written in Python programming Language −
print "Hello, World!"
The above computer program instructs the computer to print "Hello, World!" on the computer screen.
  • A computer program is also called a computer software, which can range from two lines to millions of lines of instructions.
  • Computer program instructions are also called program source code and computer programming is also called program coding.
  • A computer without a computer program is just a dump box; it is programs that make computers active.
As we have developed so many languages to communicate among ourselves, computer scientists have developed several computer-programming languages to provide instructions to the computer (i.e., to write computer programs). We will see several computer programming languages in the subsequent chapters.
Note:-
     We are provide all sufficient answer related with computer programming.
     For more related topic you may ask your question in comment box.
Thank you.
        Author : soumy sinha 
        Email: soumysinha1002@gmail.com
     

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