Explain the basic components of a computer with a neat diagram.

Explain the following:
a. Inkjet Printer
b. Multimedia projector
c. Bar code / QR code Reader

Convert (98.46)₁₀ to Bianary.

Add 1101010₂ + 101101₂

Explain the fundamental gates with expression and truth table.

Explain the Derived gates with expression and truth table.

How the read and write operations are performed by a processor? Explain.

Explain the types of ROM.

List out the points to be noted while creating a user interface for an Operating system.

Complete the following matrix.

Navigational method	Located on	Ideally suited for
Start button	Task bar
	Desktop	Exploring your disk drives and using system tools.
Windows Explorer		Seeing hierarchy of all computer contents and resources in one window.
Quick Launch

Suppose you want to solve the quadratic equation ax² + bx + c = 0 by an algorithm.
quadratic_solve (a, b, c)
-- inputs : ?
-- outputs: ?
You intend to use the formula and you are prepared to handle only real number roots. Write a suitable specification.
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

Exchange the contents: Given two glasses marked A and B. Glass A is full of apple drink and glass B is full of grape drink. Write the specification for exchanging the contents of glasses A and B, and write a sequence of assignments to satisfy the specification.

Power can also be defined recursively as
\(a^n= \begin{cases}1 & \text { if } \mathrm{n}=0 \\ \mathrm{a} \times \mathrm{a}^{\mathrm{n}-1} & \text { if } \mathrm{n} \text { is odd } \\ \mathrm{a}^{\mathrm{n} / 2} \times \mathrm{a}^{\mathrm{n} / 2} & \text { if } \mathrm{n} \text { is even }\end{cases}\) 
Construct a recursive algorithm using this definition. How many multiplications are needed to calculate a¹⁰?

What are the types of Errors?

Write a program to find the LCM and GDC of two numbers.

Write a program to find sum of the series
S = 1 + x + x² +..... + xⁿ

What is Recursion? Write a program to find the factorial of the given number using recursion.

Explain scope of variable with example.

Explain array of structures with example

How call by reference is used to pass structure to a function .Give an Example

Write a c++ program to declare and accept an array of professors. Display the details of the department = ”COMP.SCI” and the name of the professors start with ‘A’. The structure “college” should contain the following members.
prof_id as integer
name and Department as character array

Write the output of the following c++ program
#include <iostream>
#include <string>
using namespace std;
struct student
{
introll_no;
char name[10];
long phone_number;
};
int main(){
student p1 = {1,"Brown",123443},p2;
p2.roll_no = 2;
strcpy(p2.name ,"Sam");
p2.phone_number = 1234567822;
cout<< "First Student" <<endl;
cout<< "roll no : " << p1.roll_no <<endl<< "name : " << p1.name <<endl;
cout<< "phone no : " << p1.phone_number <<endl;
cout<< "Second Student" <<endl;
cout<< "roll no : " << p2.roll_no <<endl<< "name : " << p2.name <<endl;
cout<< "phone no : " << p2.phone_number <<endl;
return 0;
}

Write a note on the basic concepts that suppors OOPs?

Explain the different visibility mode through pictorial representation.

What is piracy? Mention the types of piracy? How can it be prevented?