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Irina18 [472]
3 years ago
5

What is the purpose of the operating systems management function

Computers and Technology
1 answer:
PIT_PIT [208]3 years ago
3 0
The purpose of the operating systems is to provide an interface between the user and hardware. It's mange all resources, for example; memory, processors, and disk space. It's also mange how to file and store data in a computer system.
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LargeCo is planning a new promotion in Alabama (AL) and wants to know about the largest purchases made by customers in that stat
pychu [463]

Answer:

Check the explanation

Explanation:

Assuming Cust_code is unique for every customer.

Query :

SELECT * FROM CUSTOMER WHERE CUST_STATE= "AL" GROUP BY CUST_CODE HAVING LARGEST INVOICE = MAX(LARGEST INVOICE) OR (LARGEST INVOICE =0 and INV_DATE IS NULL);

5 0
3 years ago
In your own words, describe the structure and function of both the stack and queue data structure and discuss how they are diffe
Kobotan [32]

Answer:

Following are the answer to this question:

Explanation:

Stack:

The stack data structure is used to create method, parsing, analysis of expression, and tracking. This data type uses the LIFO system, which stands from the Last In First Out. This data structure operates on the top side. In this data structure, it performs two methods, that are "push() and pop()" method and the time complexity of the stack data structure O(1).

Example of Stack:

import java.util.*;//import package

 public class Main //defining class Main

{      

public static void main (String[] ag)//defining main method  

  {

     ArrayDeque<Character> stack = new ArrayDeque<Character>();//creating Character array ArrayDeque  

       stack.push('A'); //add value in stack  

      stack.push('B');//add value in stack  

      stack.push('B'); //add value in stack  

      System.out.println("First Insert:"+stack); //print value         stack.pop();//remove value from stack    

    System.out.println("After removing element: "+stack); //print value         stack.push('B'); //add value in stack    

    stack.pop();//remove value from stack      

 System.out.println("final value: "+stack); //print value    

}

}

Output:

First Insert:[B, B, A]

After removing element: [B, A]

final value: [B, A]

Queue:

The queue data structure is an abstract type, it is similar to the stacks data structure. It is open at both ends when opposed to lines. It follows the FIFO method, which stands for the First-In-First-Out method, At one end data is inserted and at the other end, it deletes the data and the time complexity of the queue data structure O(1).

Example of Queue:

import java.util.*;//import package  

public class Main//defining a class queue

{  

    public static void main(String[] ars)//defining main method

    {  

      LinkedList<Integer> que= new LinkedList<Integer>();//defining integer array LinkedList    

      for (int i = 0; i < 5; i++)//defining fo loop to add value in queue  

     {    

        que.add(i); //use add method to insert value        

}        

System.out.println("Queue value: "+ que); //print queue value      

  int remove= que.remove(); //remove value from the queue          System.out.println("after removing value from queue: "+ remove);//removing element from queue  

      System.out.println(que);  //after removing the element print value  

  }

}  

Output:

Queue value: [0, 1, 2, 3, 4]

after removing value from queue: 0

[1, 2, 3, 4]

6 0
3 years ago
How to connect a three way switch to a regilar switch?
victus00 [196]
The correction is *regular.
4 0
3 years ago
Ladders are a fundamental piece of equipment on construction sites and employers are expected to ensure that workers follow safe
Ede4ka [16]
That statement is true.

Ladders commonly used to do a couple of construction activities in a higher region of a building or area.
If this equipment is not used properly, it could potentially caused  fatal accidents for the people on the site
6 0
3 years ago
9. Government and corporate officials concerned about security threats do not bring their own cell phones or laptops when travel
tatuchka [14]

Answer:

True

Explanation:

It is known as Don-Not-Carry rules are implemmented to avoid

-Unauthorized full disk copies (it have been made while the laptop owner was out of the hotel room on overseas travel)

-Laptops steals

- Monitoring by third parties of wireless using.

3 0
3 years ago
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