If you install an ata/66 hard drive on a computer that is ata/100 capable, what will happen

The hard drive will function at ATA/66 speed.

Explanation:ATA( advanced technology attachment) is a type of Disk drive that integrates it features of the drive controller into the drive it self directly,ATA range from ATA/1,ATA/2,ATA/3,ATA/33,ATA/66,ATA/100. When ATA/66 is installed on a computer with ATA/100 capable,the hard drive of the Computer will function at the speed of ATA/66.

It is recommended that when working with an ATA/100 capable drive it is better to install an ATA/100 disk drive.

The hard drive will function at the ATA/66 speed .

Explanation:

The hard drive will be recognized by the computer system and will function normally. Because computer is capable enough for ATA/66 and not less than that. In fact your computer has a ATA/100 capacity.

Explanation:

The following code is written in Java. It is a method that calculates the square root of a number as requested. The method first checks with an IF statement if the parameter value is a positive number and then calculates the square root and prints it to the screen. Otherwise, it prints Number must not be negative. A test case has been provided in the main method and the output can be seen in the attached image below.

import java.util.Scanner;

class {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.print("Enter a number of type double to calculate square root:");

       double num = in.nextDouble();

       rootPositive(num);

   }

   public static void rootPositive(double num) {

       if (num > 0) {

           System.out.println(Math.sqrt(num));

       } else {

           System.out.println("Number must not be negative.");

       }

   }

}