Answer:
import java.util.Scanner;
class Main {
public static void main(String args[]) {
Scanner scan = new Scanner(System.in);
System.out.print("Enter a decimal value (0 to 15): ");
int num = scan.nextInt();
scan.close();
if (num < 0 || num >15) {
System.out.printf("%d is an invalid input\n", num);
} else {
System.out.printf("The hex value is %X\n", num);
}
}
}
Explanation:
Hopefully this example will get you going for the other assignments.
A. the modem provides the wifi or internet to the computer
Answer:
The code to calculate the area of a circle is:
from math import pi
def circleArea(radius):
if radius > 0:
return pi * (radius ** 2)
else:
return None
if __name__ == '__main__':
radius = 5
print("Radius: {} Area: {}".format(radius,circleArea(radius)))
Explanation:
A detailed explanation of each line of code is given below.
#Define the number pi used to calculate the area
from math import pi
#We define a function that calculates the area of a circle
def circleArea(radius):
#Check if the radius is valid ( radius > 0) since there aren´t negative radius
if radius > 0:
#Compute the area formula for a circle 
return pi * (radius ** 2)
else:
#Return None if the radius is invalid
return None
#Run the function we´ve defined
if __name__ == '__main__':
#Define a radius
radius = 5
#Call the function and parse the radius through it, then print the result
print("Radius: {} Area: {}".format(radius,circleArea(radius)))
Answer:
The requirement of the virtualization in the operating system:
• The virtualization of the resources from single systems input can be partitioned into a small virtual environment in multiple system data processes.
• Virtualization can collect the physical system's hardware and software data, they can transfer the virtualization process and also verify that the working system is running properly.
• Virtualization has to determine the specific components such as workload, file location, network traffic and console administration process. The requirement for moving into the virtual environment must be selected based on windows for the operating system(32-bit), windows host operating system(4-bit) and Linux operating system.
Answer:
Business intelligence.
Explanation:
That concept that applies to that of the selection, incorporation, evaluation, and analysis of companies or business information systems, software, and behaviors. It is direct at promoting good business decision-making.
This is a wide concept of software and technology to capture, store, analyze, and to provide information access to support users make far better strategic decisions.
