1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Soloha48 [4]
2 years ago
9

What are backup storage devices of computer? Why are they necessary in the computer system?​

Computers and Technology
1 answer:
Rina8888 [55]2 years ago
7 0

Answer:

Backup storage devices retains current copies of data on hand, enabling backup in the event of hardware failure or data loss. Backup storage, unlike long-term, archive, or cold storage, must allow for the quick recovery and restoration of backup data. Backup storage devices are disk-based hardware appliances that include specialized software for encryption, interconnection, data processing, and compression. A remote backup appliance aids in the maintenance and recovery of company operations. As storage media, backup storage frequently employs both disk-to-disk (d2d) and magnetic tape systems.

The primary function of such devices is data storage and processing, which serve to improve efficiency and performance. This component comprises hard disks, USB drives, solid-state drives, and portable hard drives. There are additional storage options, such as cloud storage, AWS storage, and so on, but they are not the principal sources of storage devices. These are some of the new ways to save data online. Storage devices are an essential component of a computer system.

You might be interested in
Write a Java program that prompts the user to enter integer values for the sides of a triangle and then displays the values and
satela [25.4K]

Answer:

import java.util.Scanner;

public class triangle {

       public static void main (String [] args) {

           int sideOne, sideTwo, sideThree;

           Scanner in = new Scanner (System.in);

           System.out.println("Enter the first side of the triangle");

           sideOne = in.nextInt();

           System.out.println("Enter the secon side of the triangle");

           sideTwo = in.nextInt();

           System.out.println("Enter the third side of the triangle");

           sideThree = in.nextInt();

           if ( sideOne<=0||sideTwo<=0|| sideThree<=0){

               System.out.println(" The Values enter are "+sideOne+ "," +sideThree+ ","+sideThree+ " These values don't make a valid triangle");

           }

           else if ((sideOne + sideTwo> sideThree) || (sideOne+sideThree > sideTwo) || (sideThree+sideTwo > sideOne))

           {

               System.out.println ("The triangle is Valid");

           }

           else {

               System.out.println(" The Values enter are "+sideOne+ "," +sideTwo+ ","+sideThree+ " These values don't make a valid triangle");

           }

       }

Explanation:

for a Triangle to be Valid one of the three sides of the triangle must greater than the other two sides.  The code above enforces this condition using an if statement in combination with the Or Operator

The following conditions where enforced

side one, side two and side three != 0

Side One + Side Three > Side Two

Side Three + Side Two> Side One

Side Two + Side One > Side Three

7 0
3 years ago
In Python, while loops will repeat during the time the test condition is true.
frez [133]

Answer:

It is true

Explanation:

3 0
2 years ago
Read 2 more answers
Ns.office.com/Pages/ResponsePage.aspx?id=bd8
bulgar [2K]

Answer:

spreadsheet software

Explanation:

Spreadsheet software is an application that allows users to organize data in columns and rows and perform calculations on the data. These columns and rows collectively are called a worksheet.

6 0
3 years ago
Read 2 more answers
A signal travels from point A to point B. At point A, the signal power is 100 W. At point B, the power is 90 W. What is the atte
11Alexandr11 [23.1K]

Answer:

Attenuation = 0.458\ db

Explanation:

Given

Power at point A = 100W

Power at point B = 90W

Required

Determine the attenuation in decibels

Attenuation is calculated using the following formula

Attenuation = 10Log_{10}\frac{P_s}{P_d}

Where P_s = Power\ Input and P_d  = Power\ output

P_s = 100W

P_d = 90W

Substitute these values in the given formula

Attenuation = 10Log_{10}\frac{P_s}{P_d}

Attenuation = 10Log_{10}\frac{100}{90}

Attenuation = 10 * 0.04575749056

Attenuation = 0.4575749056

Attenuation = 0.458\ db <em>(Approximated)</em>

7 0
3 years ago
Write a complete program that declares an integer variable, reads a value from the keyboard into that variable, and writes to st
Feliz [49]

Answer:

// here is code in C++.

#include <bits/stdc++.h>

using namespace std;

// main function

int main()

{

  // variables

  double num;

  // read discriminant

  cin>>num;

  // calculate square of the input

  double result=num*num;

  // print the square number

  cout<<result<<endl;

     return 0;

}

Explanation:

Declare a variable "num".Read the value of "num" from keybord.Then calculate square of the input number.Print the square of input number.

Output:

5

25

5 0
3 years ago
Other questions:
  • _____________ is a service that provides access to hardware resources available over the Internet.
    11·1 answer
  • Write the importance of cyber law? In point .<br>​
    10·2 answers
  • What is one disadvantage of accessing the Internet through a public search engine such as Google or Yahoo?
    10·2 answers
  • A small company is requesting a quote to refresh its wireless network. The company currently runs 60 autonomous APs and has plan
    13·1 answer
  • Steps in the systems development life cycle​
    15·2 answers
  • In a flashdisk wich icon can you use to open files in computer​
    5·1 answer
  • Laptops are used for accessing the internet. Name two advantages and two disadvantages for using a laptop rather than a smartpho
    5·2 answers
  • Who invented the first mechanical computer? in what year was it invented?.
    11·1 answer
  • Im coding and need help please answer or comment to help. any skilled coders comment below
    12·1 answer
  • The residual volume can be measured directly with: Select an answer and submit. For keyboard navigation, use the up/down arrow k
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!