Types of software                   If you want program only   
                                                                           open here

System software

Operating System
            It act as an interface between user and the computer
Translators
           Used to convert the high level language to low level language.

Application software

Packages
            Ready made software for some specific purpose

Languages.
             User written coding for any type of operations.

 

 

 

LANGUAGE

 1.High-level language: 

            - High level languages are the English like language,
so it is easy to write and understanding.
                       
            Example: BASIC, FORTRAN, COBOL, PASCAL,  etc.

 

2.Low-level language:

        1) Machine language:
         Computer can understand only digital signals, which is
binary 1 and 0. So the instruction given to the computer can be
only in binary codes 0 and

        2) Assembly language:
         In assembly language instructions are given in English like words,
such as MOV, ADD, SUB etc. It is used to instruct the components
of the system hardware directly.  Hence it is easy to write and understand
assembly programs. These assembly language instructions are known
as "mnemonic codes".

         3) middle level language :                         
          c is a middle level language. Its stands for both low level and
high level languages.

Translator:
            Translator is used for translate high level language into
low level language (machine understandable language). These are

            -  Assembler
            -  Compiler
             - Interpreter

Assembler:
     Assembler is used for converting the code of low level
language (assembly language) into machine level language.

Compiler:
     Compiler is used for converting the code of high level language program
into machine language. The compiler searches all the errors of the program
and lists them.

Interpreter:
   Interpreter is same as compiler but it checks the errors of
program statement by statement. After checking the one statement,
it converts that the statement into the machine code and then
execute that statement.

 

 

 

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