BSc IT - Structure Programming Methodology - Java

A program  is a set of instructions written in a programming language that tells a computer how to perform a specific task. These instructions are followed step-by-step by the computer to carry out operations like calculations, data processing, or controlling hardware. 

Levels of Programming Languages: 

There are three main levels of programming languages: 

    Machine Language (Low-Level) :   
        It is written in binary code (0s and 1s), which the computer's CPU can understand directly.
        Very fast but difficult for humans to read and write.
         

    Assembly Language (Also Low-Level) :   
        Uses simple English-like words (mnemonics) instead of binary.
        Needs to be translated into machine language using an assembler .
        Easier than machine language but still close to hardware.
         

    High-Level Languages (HLL) :   
        Use English-like syntax that is easy for humans to understand.
        Examples: Java, Python, C++, and JavaScript.
        Need to be translated into machine language using compilers , interpreters , or assemblers .
        Portable and easier to write, debug, and maintain.