COMPILERS INTERPRETERS AND ASSEMBLERS PDF

A compiler is defined as a computer program that is used to convert high level instructions or language into a form that can be understood by the computer. Since computer can understand only in binary numbers so a compiler is used to fill the gap otherwise it would have been difficult for a human to find info in the 0 and 1 form. Earlier the compilers were simple programs which were used to convert symbols into bits. The programs were also very simple and they contained a series of steps translated by hand into the data. However, this was a very time consuming process.

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The main difference between compiler interpreter and assembler is that c ompiler converts the whole high level language program to machine language at a time while interpreter converts high level language program to machine language line by line and assembler converts assembly language program to machine language.

A computer program is a set of instructions for the computer to perform a certain task. Most programs are written in high level languages or assembly language. These programs are easy to read and understand by programmers but not understandable by the computer. The computer only understands machine language. It consists of binary which is ones and zeros. Therefore, the high level or assembly program should be converted into machine language for the computer to understand the instructions.

Compiler, interpreter and assembler are translators that convert high level or assembly language based programs to machine language. A compiler is a language translator that converts high level programs into machine understandable machine codes.

In this process, the compiler converts the whole program to machine code at a time. If there are any syntactic or semantic error, the compiler will indicate them. It checks the whole program and displays all errors. It is not possible to execute the program without fixing those errors. The execution time is lower in these languages.

Therefore, they are considered fast languages. An interpreter is also a language translator that converts high level programs into machine codes. Unlike compilers, interpreters convert the source code to machine code line by line.

As it checks line by line, the scanning time is lower. But the overall execution time is higher. Interpreter displays an error at a time. The programmer should fix that error to interpret the next line. In addition to high level languages and machine language, there is another language called the assembly language. Assembly language is in between the high level languages and machine language. It is closer to machine language than high level languages. It is also called low level language.

This language is not easily readable and understandable by the programmer like a high level programming language. The assembler works as the translator in converting the assembly language program to machine code. A compiler is a software that converts programs written in a high level language into machine language. An interpreter is a software that translates a high level language program into machine language while an assembler is a software that converts programs written in assembly language into machine language.

Compiler converts the whole high level language program to machine language at a time. Interpreter converts the high level language program to machine language line by line. In contrast, assembler converts assembly language program to machine language. Compiler, Interpreter and Assembler are language translators. The difference between compiler interpreter and assembler is that compiler converts whole high level language programs to machine language at a time while interpreter converts high level language programs to machine language line by line and assembler converts assembly language programs to machine language.

She is passionate about sharing her knowldge in the areas of programming, data science, and computer systems. Figure 1: Compiler. View all posts. Leave a Reply Cancel reply.

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What is the difference between assembler, compiler and interpreter?

The main difference between compiler interpreter and assembler is that c ompiler converts the whole high level language program to machine language at a time while interpreter converts high level language program to machine language line by line and assembler converts assembly language program to machine language. A computer program is a set of instructions for the computer to perform a certain task. Most programs are written in high level languages or assembly language. These programs are easy to read and understand by programmers but not understandable by the computer. The computer only understands machine language. It consists of binary which is ones and zeros.

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Translators - usually included within programming software - convert high-level code into machine code. Translators are assemblers , interpreters or compilers. Assembly language is a low-level language written in mnemonics that closely reflects the operations of the CPU. An interpreter translates code into machine code, instruction by instruction - the CPU executes each instruction before the interpreter moves on to translate the next instruction. Interpreted code will show an error as soon as it hits a problem, so it is easier to debug than compiled code.

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