Levels of programming languages: A computer system is composed of hardware and the software. At the lowest level is the hardware layer and above it are the software layers. A computer is an electronic programmable machine. To make the hardware work, it can be programmed using the programming languages. These languages are divided into various levels, these are described below: Machine Level Language: It is a language of 0’s and 1’s,  which is a binary language. Writing in binary format is very difficult. But is very easy machine, bcs m/c works on binary. Therefor m/c can directly execute such code without conversion. Assembly Level Language : In thi level mnemonic or symbols are used for the binary code. Thus making it convenient for the