1 / 13

Difference Between High and Low Level Language

Difference Between High and Low Level Language. Introduction to C-language. C is a High level language. An experienced C programmer said you can do anything in C and This statement is back up by his huge collection of programmes developed using C.

kyria
Download Presentation

Difference Between High and Low Level Language

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Difference Between High and Low Level Language

  2. Introduction to C-language C is a High level language An experienced C programmer said you can do anything in C and This statement is back up by his huge collection of programmes developed using C C was used to write many operating systems most part of Unix is written in C

  3. History of C C was founded by Dennis_Ritchie at Bell Laboratories in 1970. The team headed by Dennis was working on Linux operating system suddenly they noticed that their codes can be introduced as a whole language. A & B languages were also exist that time so named their language as C. C was originally implemented on a DEC PDP-11 computer in 1972. Dennis_Ritchi C evolved from two previous languages, BCPL and B. BCPL was developed in 1967 by Martin Richards as a language for writing operating-systems software and compilers.

  4. Bell Labs Bell is a historic lab many inventations took place here. It is satuated in new jercy America Bell labs The first transistor was made in Bell Labs

  5. C-Programming C uses Structured Programming technique Structured Programming Structured programming is an easy and simple technique for writing programs. This technique uses only three types of instructions. Sequential Structure Conditional / Selective Structure Iterative / Repetitive Structure

  6. Sequential Structure Statement 1 Statement 2 Statement 3 Statement 4

  7. Conditional Structure Condition T / F True False Statement 1 Statement 2 Three type of conditions are avalible in C IF IF ELSE Switch

  8. Iterative Structure Condition T / F False Truee Statement(s) Three type of Iterative are avalible in C WHILE DO WHILE FOR

  9. C Compiler • Compiler is a language translator . • When we write a program in C the Compiler changes it into machine language or low level. • The process of compiling a high-level language program into machine language can take a considerable amount of computer time

  10. Simple C program preprocessor #include<stdio.h> #include<conio.h> Void main { clrscr(); Int a=5, b=10,sum; printf(“The Sum =%d”,sum=a+b); getch(); } Main function Body of program Variable names C statement Place Holder Data Type

  11. Structure of C program • Summary of major points for c • program execution begins at main () • Keywords are written in lower-case • Statements are terminated with semi-colon • Text strings are enclosed in double quotes • C is case sensitive, use lower-case and try not to capitalise variable names • Printf() can be used to display text to the screen • The curly braces {} define the beginning and end of a program block • In C code flexibility. i.e. we can change in the structure of program. • 32 reserved words or key words. 27 by dennis and 5 by ANSI Standard.

More Related