A Narrative Statement illustrates how your life will look when you reach a goal.

Which of the following shows the correct order of inventions that helped the first computers make calculations?

castortr0y [4]

Answer:

1st - Mechanical Relays, 2nd - Vacuum tubes, 3rd - Transistors

Explanation:

From Tubes...

The three main components of a basic triode vacuum tube.

The type of tube used in early computers was called a triode and was invented by Lee De Forest in 1906. It consists of a cathode and a plate, separated by a control grid, suspended in a glass vacuum tube. The cathode is heated by a red-hot electric filament, which causes it to emit electrons that are attracted to the plate. The control grid in the middle can control this flow of electrons. By making it negative, you cause the electrons to be repelled back to the cathode; by making it positive, you cause them to be attracted toward the plate. Thus, by controlling the grid current, you can control the on/off output of the plate.

Unfortunately, the tube was inefficient as a switch. It consumed a great deal of electrical power and gave off enormous heat—a significant problem in the earlier systems. Primarily because of the heat they generated, tubes were notoriously unreliable—in larger systems, one failed every couple of hours or so.

...To Transistors

The invention of the transistor was one of the most important developments leading to the personal computer revolution.The transistor was invented in 1947 and announced in 1948 by Bell Laboratory engineers John Bardeen and Walter Brattain. Bell associate William Shockley invented the junction transistor a few months later, and all three jointly shared the Nobel Prize in Physics in 1956 for inventing the transistor. The transistor, which essentially functions as a solid-state electronic switch, replaced the less-suitable vacuum tube. Because the transistor was so much smaller and consumed significantly less power, a computer system built with transistors was also much smaller, faster, and more efficient than a computer system built with vacuum tubes.

The conversion from tubes to transistors began the trend toward miniaturization that continues to this day. Today’s small laptop PC (or netbook, if you prefer) and even Tablet PC systems, which run on batteries, have more computing power than many earlier systems that filled rooms and consumed huge amounts of electrical power.

8 0

2 years ago

Which command is used to copy entire folder structures between volumes or across a network while maintaining all NTFS file permi

True [87]

Answer:

Robocopy

Explanation:

The newer and most used command to accomplish this is Robocopy. This code does exactly what is described in the question, it copies the entire structure of the volume in question but still maintains all of its permissions and attributes. It also allows you to copy large datasets at an extremely fast speed, roughly 150 MB/sec. Robocopy can even resume interrupted file transfers without loss of data.

8 0

3 years ago

First write a method to calculate the greatest common divisor (GCD) of two positive integers using Euclid’s algorithm (also know

MAVERICK [17]

Answer:

import java.util.Scanner;

public class Gcd

{

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

System.out.print("Enter two numbers to find their GCD: ");

int number1 = input.nextInt();

int number2 = input.nextInt();

if(number1 > 0 && number2 > 0)

System.out.println("GCD of " + number1 +" and " + number2 +" is: " + findGCD(number1, number2));

else

System.out.println("Invalid Input!");

}

public static int findGCD(int number1, int number2) {

if(number2 == 0){

return number1;

}

return findGCD(number2, number1 % number2);

}

Explanation:

To be able to find GCD, we need to factorize the numbers and multiply common factors.

- Inside the function:

- Recursively divide number1 by number2 until number2 is equal to zero.

- Return number1 when the number2 is equal to zero. That means we found all the divisors of number1

- Inside the main:

- Ask user to input numbers

- Check if both numbers are greater than zero

- If they satisfy the condition, call the method and print the result.

7 0

3 years ago

Difference between sorting and filtering

Serggg [28]

<h3>Sorting</h3>

The term “sorting” is used to refer to the process of arranging the data in ascending or descending order.

Example: Statistical data collected can be sorted alphabetically or numerically based on the value of the data.

<h3>Filtering</h3>

The process of data filtering involves selecting a smaller part of your data set to view or analyze. This is done by using that subset to view or analyze your data set as a whole.

Example: A complete set of data is kept, but only a portion of that set is used in the calculation, so the whole set is not used.

Hope this helps :)

5 0

1 year ago

Read 2 more answers

How does light move? Shift? Bounce between different objects?

ZanzabumX [31]

Answer:

Bounce between different objects

Explanation:

Light probably will bounce off of objects or it might go through, i think it depends on what object and what material.

6 0

3 years ago