Levels of C - Language

-



 


Levels of computer language:-

1) Low level language:

Defined as a language which uses 0's and 1's and can       be understood only by the computer to computer         without any translator.

It is also called BINARY (or) MACHINERY LANGUAGE.

 It is so hard to learn and also program(instructions to the computer)  will be larger size.

 Debugging (finding errors) is difficult.
            
   Used in early days , but not now.

2) High level language: 

 Defined as a language which uses English language and symbols like “+” , “-“ , “*” , “/” , print, read, write etc… to develop programs which can be easily understood by the programmer.

 Computer can not understand this language directly. But it has to be translated into machine language with the help compiler (a translator program).

 User has to remember the syntax(format).

 Program will be very small in size.

  Easy to learn and understand.

 Debugging (finding errors) is easy.

  Takes less time to develop a program. 



                                                                                                               --  Thank you  --

Comments

Post a Comment

Popular posts from this blog

Structure of C-Language

-
Image
Now let us combine all the above three sections/parts to make a complete C program. =>/* Program to print hello world*/ #include<stdio.h>     /*link section*/ Int main()                   /*main function*/ {       Printf(“Hello world”);       Return 0; } Output: -  Hello world Note: - only link and main function sections are compulsory. Documentation section is optional. The various sections/parts of a C program are:- 1)  Document section :-  Gives the brief explanation of the program, author,date written etc….. 2)  Link section :- Include header files with #include statements. 3)  Definition section :- variables and initializes them using # define. 4)  Global declaration section :-   The  variables used throughout the program are declared. 5)    Function Protot...
Read more
-
Image
Programming Style of C Language :-   The style of a C Language describes how to use various elements of C language to increase clarity, readability and understandability of c programs. Various elements that are included to describe c-style are:- 1.Names. 2.Spaces. 3.Line Breaks. 4.Comments. 5.Indentation. 6.Blank lines. 7.Braces. 1.Names : Use Meaningful names for File names. Variable names. Function names. If two (or) three words are used in names, combine them with Underscores. File name should have an extension .c. Function name should be terminated with() Examples: Sum_of_two_numbers.c. file1.c, calendar.c                  /* File names */ Area_of_circle, x. y. z                     /* variable names */   Print_address().read_data(), calc_interest()        ...
Read more
-
Image
Execution of the C Program:-   Developing a program in a compiled language such as C requires at least four steps: 1. Editing (or writing) the program. 2. Compiling. 3. Linking. 4. Executing.   Step 1: Editing : (in turbo C Compiler use the command TC filename.c at dos (prompt)          1. Write C program using Text Editor. Such as Notepad or Turbo C editor.         2. Save program with an extension .C (F2 in Turbo C)         3. File saved with .C extension is called as Source Program.   Step 2: Compiling : (In turbo C compiler use Alt + F9 Key)   1.  Source Program with an extension .C is given as input to Compiler. 2.   Compiler checks for errors, if source code contains errors then goto step1 to modify the source program. 3.  If source code is error free then Compiler Converts it into Object file with an extension obj and...
Read more