Saturday, March 16, 2019

Posted by Rajnish Kumar
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Thursday, March 14, 2019

Posted by Rajnish Kumar
Learn how to program in C. Learn the basic and advanced concepts of C programming from this C tutorial library, along with details and helpful examples. Learn how to program in C++. Learn the basic and advanced concepts of C++ programming from this C++ tutorial library, along with details and helpful examples. Java is robust technology widely used to develop application software. This Java tutorial series will help you get started learning Java programming from the basics. This Introductory chapter helps beginner programmer to get started in PHP. This HTML tutorial series describes the various features of the HTML language to make web development easier. Python is famous as a programming language and its usage is increasing. This Introductory chapter helps beginner programmer to get started learning about Python programming. Cloud computing is the latest generation technology with a high IT infrastructure that provides us a means by which we can use and utilize the applications as utilities via internet Swift is a new programming language for developing apps for IOS and Mac OS, and it is destined to become the foremost computer language in the mobile and desktop space. This lesson helps beginner to get started in R Programming Language . This Introductory chapter helps beginner programmer to get started in WordPress. This Laravel tutorial series describes various features of the Laravel - PHP framework to make web development easier. Learn how to test software with different methods and testing tools.
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Tuesday, March 12, 2019

page

Posted by Rajnish Kumar

C Tutorial




This C tutorial series will help you to get started in C programming language. By learning C, you will understand basic programming concepts.
C is one of the most popular and widely used programming language, used to develop system application software.

Audience

This C tutorial series has been designed for those who want to learn C programming; whether you are beginners or experts, tutorials are intended to cover basic concepts straightforwardly and systematically.

Required Knowledge

To learn C Programming language you haven't required any previous programming knowledge, but the basic understanding of any other programming languages will help you to understand the C programming concepts quickly.

C Example

A quick look at the example of Hello, World! In C programming, and detailed description is given in the C Program Structure page.
/* Author: www.w3schools.in
Date: 2018-04-28
Description:
Writes the words "Hello World" on the screen */  
#include<stdio.h>

int main()
{
    printf("Hello, World!\n");
    getch(); //Use to get one character input from user, and it will not be printed on screen.
    return 0;
}
Program Output:
C program
The above example has been used to print Hello, World! Text on the screen.
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Friday, April 20, 2018

Computer network assignment

Posted by Rajnish Kumar

     Assignment:-01

Q 1. What is polling in control access ?
    Ans:-Polling is the process of sending a signal to a client (a computer or terminal) that gives it permission to transmit or asks it to receive. With polling, the clients store all messages that need to be transmitted. Periodically, the server (usually a mainframe computer) polls the client to see if it has data to send. If the client has data to send, it does so. If the client has no data to send, it responds negatively, and the server asks another client if it has data to send.

  • Polling process is similar to the roll-call performed in class. Just like the teacher, a controller sends a message to each node in turn.
    • In this, one acts as a primary station(controller) and the others are secondary stations. All data exchanges must be made through the controller.
    • The message sent by the controller contains the address of the node being selected for granting access.
    • Although all nodes receive the message but the addressed one responds to it and sends data, if any. If there is no data, usually a “poll reject”(NAK) message is sent back.
    • Problems include high overhead of the polling messages and high dependence on the reliability of the controller.
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