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The computer has become a part of life and an hour without a computer is unimaginable. It is a creation of genius and wonder, the way it operates and does the commands given to it so efficiently. But how does a computer really work? How can it understand the commands you give it all the time? Can it understand English?
A computer is an electronics device. It works on power like any other device and so, it can only understand the language of machines, which is 0 and 1. This is the binary representation of the voltage levels supplied to the computer, where 0 usually represents low voltage and 1 represents high voltage. So any instruction you give would be converted to the corresponding levels.
A programming language is a high level language which is converted into the machine level language by an interpreter called compiler. All the softwares are written in programming languages and this is presented to you in a form that you can understand. Hence, programming languages are important in making a computer user friendly.
There are many programming languages in the area of computers. Among these, the computer programming or C-programming and its advanced form are the most widely used languages as it is easy to understand and study as well. It is closely followed by Java, which is widely used in many applications of the computer. Both the languages have their own areas of applications.
There are many other languages such as Pascal, etc which are not widely used and neither understood by people who are not trained in it. Most of the operating systems and the parts are written in C while the web applications use java. Learning computer languages is an essential part of understanding computer engineering. It can help you understand and program your computer yourself.