Day 18

 Hello

Today and tomorrow we will stop the Java course and delve a little into programming in general

Any computer for any language, whether Arabic, English, Spanish, Indian, and here is the shock, it does not understand Java or even C or C++ or any language

It only understands 0 and 1, which is called binary, and it is a very difficult language.

But the programming languages ​​that we mentioned and did not mention are nothing but an intermediary between us and the computer to facilitate the communication process between us.

A very long time ago, they communicated with the computer via 0 and 1, and it was difficult and took many days. Now that they have reached the programming languages, the matter has become much easier, and I believe that no one uses writing via 0 and 1.

There are also non-binary types. There is an octal system, which consists of 8 numbers from 0 to 7. There is a decimal, which consists of 10 numbers from 0 to 9. The last type is hexadecimal, which consists of 16 numbers from 0 to 15.

However, it should be noted that if we write 10 or 11, we may think that it is a binary system consisting of 1 1. Or the numbers from 13 to 15, we may think that they are an octal system. Therefore, they put the numbers from 10 to 15 in the form of alphabetical letters. The number 10 is A, 11 is B, 12 is C, 13 is D, 14 is E, and 15 is F to connect between the hexadecimal and horizontal systems. These are the details of the details about programming and computers.