Answer : IT Tools and Business Systems (January 2019)

Q. 5 (A) : Explain about Multitasking operating system in detail.

Answer :

Multitasking, in an operating system, is allowing a user to perform more than one computer task (such as the operation of an application program) at a time. The operating system is able to keep track of where you are in these tasks and go from one to the other without losing information. Microsoft Windows 2000, IBM's OS/390, and Linux are examples of operating systems that can do multitasking (almost all of today's operating systems can). When you open your Web browser and then open Word at the same time, you are causing the operating system to do multitasking.

Descriptive Question Answer NIELIT (O-Level ) IT Tools and Business Systems (July 2019)

Answer IT Tools and Business Systems (July 2019)

Q 5 (A) . Define Computer. Explain the main characteristics of Computer.

Answer :

Computer

A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.

Dynamic Memory allocation | Input | Print Ascending Order program | C Language

 Q : Write a program using dynamic memory allocation to read numbers as input and display them in sorted order thereafter.

Answer :

#include<stdio.h>

#include<conio.h>

#include<stdlib.h>

/*============================

     Girfa Student Help

     Dynamic array and ascending print

==============================*/

void main()

{

String Concatenation without library function | C Language

Q : Write a program to concatenate two strings. (Do not use inbuilt string function).

Answer : 

#include<stdio.h>

#include<conio.h>

/*============================

     Girfa Student Help

     Concatenation string

==============================*/