The various programming language levels are given below:

• Low-level Language: Language which is directly understood by the machine is known as the low-level language (binary language or machine language). It is difficult for a human being to directly READ and do coding in this language.
• Assembly level language: This language will make use of MNEMONICS, which minimizes the program complexity. It is quite similar to the computer understandable machine code, but it uses words in place of numbers.
• Middle-level Language: It INTERACTS with the abstraction layer of a computer and binds the gap between high-level and machine-level language. For example, programming languages like C and C++.
• High-level language: This is the highest level of the programming language in the technology, which has strong abstraction from the computer hardware details. That means this kind of programming language does not require hardware knowledge about computers. This programming language is simple to learn by human beings as it is in the human-understandable FORM. For example, Java, Perl, PHP, PYTHON, etc.