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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.

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Choose the appropriate computing generation.
tia_tia [17]

Answer:

5th generation : artificial intelligence

3rd generation: integrated circuits

4th generation : microprocessors

5th generation: parallel processing

<em>hope this helps!</em>

5 0
3 years ago
Read 2 more answers
Write a function called factor that determines for a pair of integers whether the second integer is a factor of the first. The f
Aleks04 [339]
<h2>Answer:</h2>

//import the Scanner class to allow for user's input

import java.util.Scanner;

//Declare the class and call it FactorClass

public class FactorClass {

   

   //Declare the function factor

   //It returns either true or false, therefore the return type is boolean

   //It receives two arguments - a and b

   public static boolean factor(int a, int b){

       

       //Check if a is divisible by b.

       //Return true if yes

       if(a % b == 0){

           return true;

       }

       

       //return false if a is not divisible by b

       return false;

   

   }  // End of method factor

   

   

   //The main method to test the function factor()

   public static void main(String[] args) {

       

       //Create an object of the Scanner class

       Scanner input = new Scanner(System.in);

       

       //Prompt the user to enter the pair of numbers

       System.out.println("Enter the pair of numbers (separated by a space)");

       

       //grab and store the first number in a variable

       int firstnum = input.nextInt();

       

       //grab and store the second number in another variable

       int secondnum = input.nextInt();

       

       

       //With the variables, call the factor() method

       //If it returns true, print the adequate message

       if(factor(firstnum, secondnum)){

           System.out.println(secondnum + " is a factor of " + firstnum);

       }

       

       //If it returns false, print the adequate message

       else{

           System.out.println(secondnum + " is NOT a factor of " + firstnum);

       }

   

 }            // End of main method

   

}    // End of class declaration

==============================================================

<h2>Sample Output 1:</h2>

>> Enter the pair of numbers  separated by a space

8 4

>> 4 is a factor of 8

==============================================================

<h2>Sample Output 2:</h2>

>> Enter the pair of numbers  separated by a space

9 4

>> 4 is NOT a factor of 9

==============================================================

<h2>Explanation:</h2>

The above code has been written in Java and it contains comments explaining every segment of the code. Kindly go through the comments for better understanding of the code.

For simplicity, the code is re-written as follows with little or no comments;

import java.util.Scanner;

//Declare the class and call it FactorClass

public class FactorClass {

   

   public static boolean factor(int a, int b) {

       if(a % b == 0){

           return true;

       }

       

       //return false if a is not divisible by b

       return false;

   

   }  // End of method factor

   

   

   //The main method to test the function factor()

   public static void main(String[] args) {

       

       //Create an object of the Scanner class

       Scanner input = new Scanner(System.in);

       

       //Prompt the user to enter the pair of numbers

       System.out.println("Enter the pair of numbers (separated by a space)");

       

       //grab and store the first number in a variable

       int firstnum = input.nextInt();

       

       //grab and store the second number in another variable

       int secondnum = input.nextInt();

       

       

       if(factor(firstnum, secondnum)){

           System.out.println(secondnum + " is a factor of " + firstnum);

       }

       

       else{

           System.out.println(secondnum + " is NOT a factor of " + firstnum);

       }

    }

   

}

3 0
3 years ago
What is outlook used for?
Arte-miy333 [17]
Outlook is used for mainly emails. It also keeps track of your calendar, has contact and tasks.
4 0
3 years ago
Read 2 more answers
Assuming that all of the table and column names are spelled correctly, what's wrong with the INSERT statement that follows?
Whitepunk [10]

Answer:

C. The number of items in the column list doesn't match the number in the VALUES list.

Explanation:

The INSERT INTO statement is used to insert new records in a table.

<u>Syntax is as follows:</u>

INSERT INTO table_name (column1, column2, column3, ...)

VALUES (value1, value2, value3, ...);

Each column item has to match with the values to be inserted in the same order.

In the question, there are 8 column items specified whereas there are only 7 values given to be inserted.

3 0
3 years ago
In linear programming a solution that does not simultaneously satisfy all constraints is called an
Eddi Din [679]
<span>When it comes to linear programming, the solution which would be effective in satisfying all constraints in the given program in a simultaneous matter is called that of feasible programming. This is due to the fact that the program can satisfy all requirements at the same time.</span>
3 0
3 years ago
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