What are the 5 generations of programming languages? A computer only understand binary language i.e., 0 and 1.  Programming languages are classified into two types: Low level languages and High level languages.  The first computer language developed by programmers was very complex. Nowadays, with the advancement in computer technology, the languages have also evolved. They have now  become similar to  English language and can be understood by us. Generation of  languages 1. First generation languages (1GLs): First generation languages are  called machine language. Machine language is a set of instructions written in binary form i.e. in a string of  0's and 1's. This language is very lengthy and complicated. The machine language is also different for every system. It is written only by experts as it requires much knowledge of the internal computer architecture which is different for different machine. As this language is very complex and understan...