Machine language and assembly language are low-level programming languages that interact closely with hardware. Machine language is the binary code that computers directly understand and execute, whereas assembly language is a human-readable representation of machine language. The main difference lies in their abstraction levels.
What Is Machine Language?
Machine language is a low-level programming language represented by 0s and 1s. It is called low-level because it is at the lowest level of the computer language hierarchy and is directly understood by the computer. Earlier, while working with calculations or doing some other work on computer screens, only binary language( 0s and 1s) was used. It was tough to do calculations and all other work in machine code. For example, to represent the number 98, the binary value 1100010 is used. Though it is machine code and relatively easy to understand by machines, it was quite difficult for humans to do all the work. To overcome this problem, assembly language came into the picture.
Moreover, it need not be translated as the CPU can directly understand the binary code.
A sequence of bits is used to give commands in machine languages.
- The 1s (one) represents the true or on states.
- On the other hand, the 0s (zero) represent the off or false states.
- In general, no human can remember the binary codes of machine languages. As a result, learning these languages is not possible.
Example
Suppose you have to write ‘Hello ninja’, the corresponding binary code will be:
01001000 01100101 01101100 01101100 01101111 00100000 01001110 01101001 01101110 01101010 01100001
Also see, what is middleware
What Is Assembly Language?
Assembly language is more than low-level and less than high-level language. Hence, it is also referred to as intermediary language. It uses symbols and abbreviations instead of binary numbers 0s and 1s. For example, assembly language uses symbols often known as mnemonics like Add for addition, Sub for subtraction, Mul for multiplication, and so forth.
Assembly language codes are more human-readable than machine languages ones. Unlike machine code, it is not very difficult for users to remember or understand assembly codes and commands.
Since the assembly language code uses mnemonics which isn’t understandable by the CPU directly, it needs a translator to convert mnemonic codes(assembly language code) into machine language(machine or object or binary code). It is done with the help of a compiler known as assembler. Now let's see what this assembler is, and it's working in detail.