If you buy a very powerful PC, spend a lot of money, believe me, without a good software it will have no sense at all. And in order to create software using programming languages.
Let’s start with the very first programming languages. They appeared in the distant 50-ies of the last century. Then they only allowed you to perform the most simple commands. For example, such programming languages allow add and multiply numbers, for it has been written special code. While those languages need to transform human-readable code on CPU the text. Because the CPU works only with binary code, such code for the CPU can be just a set of numbers: 0101000001. To convert the programming language into machine understandable code, use the compiler or interpreter. For example, to convert the C++ language uses a compiler, and to work with Python need a special interpreter.
For a better understanding of what programming languages and what good is that, it is necessary to cite the example of the Internet. Every day you visit dozens of different interesting sites. In order for these sites to operate correctly, you need this professional website to create. Most websites are created using HTML markup, but you should understand that HTML is not a programming language. It is only necessary to create a simple website. To create a good functional website should also you to learn Perl or PHP, it’s already a full-fledged programming languages.
There are two main groups of programming languages, the first group is low-level, and the second group is a high — level. The first type of language most closely resembles machine code. It is believed that they are the most difficult to program. But in high-level programming language code more similar to the human text.
The languages are very different, a lot of them. However, popular little. Popular language is C++, and C# (C «sharp»). This language was developed by MicroSoft. There is Delphi, is an enhanced Pascal. I’m sure many people studied Pascal in school. Delphi was developed by Borland, and the company set up a development environment Borland Delphi.
Most people think that a computer is only a laptop or system unit, and maybe a tablet with a phone, but this is not so. Computers are everywhere, even regular TV is already a computer terminal in the Bank, too, is a computer. Even modern air conditioners are computers. And that the appliances all functioned, employs millions of programmers worldwide developing program code to each device.