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
irina [24]
3 years ago
12

What is hard disk and compact disk ?

Computers and Technology
1 answer:
Annette [7]3 years ago
6 0
A hard disk also referred to as HDD is a rigid non-removable magnetic disk with a large data storage capacity. While a compact disk is a small plastic disc on which music or other digital information is stored in the form of a pattern of metal-coated pits from which it can be read using laser light reflected off the disc.
You might be interested in
Construct sequence using a specified number of integers within a range. The sequence must be strictly increasing at first and th
natulia [17]

Answer:

Explanation:

The following code is written in Java. It first creates a function that takes in the three parameters to create the sequence, if the sequence is valid it returns the created sequence, otherwise it prints -1 and returns an empty array. The second function called compareSequences takes in to sequences as parameters and compares them, printing out the winner. A test case has been provided in the main method and the output can be seen in the image below.

import java.util.Arrays;

class Brainly {

   public static void main(String[] args) {

       int[] seq1 = createSequence(5, 4, 2);

       int[] seq2 = createSequence(5, 3, 3);

       System.out.println("Winner: " + Arrays.toString(compareSequences(seq1, seq2)));

   }

   public static int[] createSequence(int num, int upperEnd, int lowerEnd) {

       int[] myArray = new int[num];

       int middle = (int) Math.floor(num/2.0);

       myArray[0] = upperEnd;

       myArray[num-1] = lowerEnd;

       int currentValue = upperEnd;

       for (int i = 1; i < num-1; i++) {

           if (i <= middle) {

               myArray[i] = currentValue + 1;

               currentValue += 1;

           } else {

               myArray[i] = currentValue - 1;

               currentValue += 1;

           }

       }

       System.out.println(Arrays.toString(myArray));

       if (myArray[num-2] < lowerEnd) {

           System.out.println("-1");

           int[] empty = {};

           return empty;

       } else {

           return myArray;

       }

   }

   public static int[] compareSequences(int[] seq1, int[] seq2) {

       int lowestLength;

       if (seq1.length > seq2.length) {

           lowestLength = seq2.length;

       } else {

           lowestLength = seq1.length;

       }

       for (int i = 0; i < lowestLength; i++) {

           if (seq1[i] > seq2[i]) {

               return seq1;

           } else if (seq1[i] < seq2[i]) {

               return seq2;

           }

       }

       if (seq1.length > seq2.length) {

           return seq1;

       } else {

           return seq2;

       }

   }

}

7 0
3 years ago
In this lab, your task is to complete the following: Enable all of the necessary ports on each networking device that will allow
Sphinxa [80]

Answer:

enable the used ports in the router with their respective IP address and only the connected ports in the switch. Allow configure the STP on the switch

Explanation:

Network switches are used to connect a group of computer devices in a network LAN. It is automatically enabled when a port is connected and creates a MAC address table of the computers connected to it. STP or spanning-tree protocol is a protocol used to prevent looping in a switch. Unused ports can be disabled for security reasons.

A router is a network device that is used to forward packets between networks. All used ports in a router must be enabled and configured with an IP address and subnet mask.

5 0
3 years ago
The Yuba College Library would like a program to calculate patron fines for overdue books. Fines are determined as follows: Pape
mestny [16]

Answer:

Explanation:

The following Python code creates all of the necessary functions in order to request and validate all of the inputs from the user. Once everything is entered and validated it calculates the total fee and outputs it to the user. Also calls the entire class at the end using a test variable...

class Customer:

   library_card = 0

   patrons_name = ""

   patrons_address = ""

   type_of_book = ""

   book_title = ""

   days_overdue = 0

   fee = 0.0

   book_list = ['paperback regular', 'paperback best seller', 'magazine', 'hardcover']

   def __init__(self):

       self.library_card = self.get_library_card()

       self.patrons_address = input("Patron's Address: ")

       self.book_title = input("Book Title: ")

       self.type_of_book = self.get_type_of_book()

       self.days_overdue = float(self.get_days_overdue())

       self.calculate_total()

       print("Your total Fee is: " + str(self.fee))

   def get_library_card(self):

       library_card = int(input("Enter 4-digit library card number: "))

       if (type(library_card) == type(0)) and (len(str(library_card)) == 4):

           return library_card

       else:

           print("Invalid Card number:")

           self.get_library_card()

   def get_type_of_book(self):

       type_of_book = input("Type of Book 1-4: ")

       if (int(type_of_book) > 0) and (int(type_of_book) <= 4):

           return int(type_of_book)

       else:

           print("Invalid Type")

           self.get_type_of_book()

   def get_days_overdue(self):

       days_overdue = input("Number of Days Overdue: ")

       if int(days_overdue) >= 0:

           return days_overdue

       else:

           print("Invalid number of days")

           self.get_days_overdue()

   def calculate_total(self):

       if self.type_of_book == 1:

           self.fee = 0.20 * self.days_overdue

           if self.fee > 8:

               self.fee = 8

       elif self.type_of_book == 2:

           self.fee = 0.50 * self.days_overdue

           if self.fee > 15:

               self.fee = 15

       elif self.type_of_book == 3:

           self.fee = 0.25 * self.days_overdue

           if self.fee > 5:

               self.fee = 5

       else:

           self.fee = 0.30 * self.days_overdue

           if self.fee > 23:

               self.fee = 23

test = Customer()

5 0
3 years ago
1. Name the first PC virus.<br> 2. In which language are viruses written for Microsoft programs?
Tju [1.3M]

Answer:

The first IBM PC virus in the "wild" was a boot sector virus dubbed (c)Brain, created in 1986 by Amjad Farooq Alvi and Basit Farooq Alvi in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written. The first virus to specifically target Microsoft Windows, WinVir was discovered in April 1992, two years after the release of Windows 3.0.

Explanation:

HOPE THIS HELPS

6 0
3 years ago
Read 2 more answers
Use the Date object and the Array object to determine and diplay information about the current date on your webpage. Your output
Mnenie [13.5K]

Answer:

  1. var today = new Date();
  2. var dateComp = [];
  3. dateComp[0] = today.getDate();
  4. dateComp[1] = today.getMonth();
  5. dateComp[2] = today.getFullYear();
  6. switch(dateComp[1]){
  7.    case 0:
  8.        console.log("Jan " + dateComp[0] + "," + dateComp[2])
  9.        break;
  10.    case 1:
  11.        console.log("Feb " + dateComp[0] + "," + dateComp[2])
  12.        break;
  13.    case 2:
  14.        console.log("Mar " + dateComp[0] + "," + dateComp[2])
  15.        break;
  16.    case 3:
  17.        console.log("Apr " + dateComp[0] + "," + dateComp[2])
  18.        break;
  19.    case 4:
  20.        console.log("May " + dateComp[0] + "," + dateComp[2])
  21.        break;
  22.    case 5:
  23.        console.log("Jun " + dateComp[0] + "," + dateComp[2])
  24.        break;
  25.    case 6:
  26.        console.log("Jul " + dateComp[0] + "," + dateComp[2])
  27.        break;
  28.    case 7:
  29.        console.log("Aug " + dateComp[0] + "," + dateComp[2])
  30.        break;
  31.    case 8:
  32.        console.log("Sept " + dateComp[0] + "," + dateComp[2])
  33.        break;
  34.    case 9:
  35.        console.log("Oct " + dateComp[0] + "," + dateComp[2])
  36.        break;
  37.    case 10:
  38.        console.log("Nov " + dateComp[0] + "," + dateComp[2])
  39.        break;
  40.    case 11:
  41.        console.log("Dec " + dateComp[0] + "," + dateComp[2])
  42.        break;
  43. }

Explanation:

The solution code is written in JavaScript.

Firstly, create a Date object (Line 1). The date object will automatically capture the current date and time.

Next create an array dateComp to hold the day, month and year (Line 3 -5). We use the getDate method to get current day, getMonth method for current month and getFullYear method for current year.

This is important to note that the getMonth method will return the value range from 0 - 11 with the Jan is represented as 0, Feb is 1 and so forth. Presume we intend to display the date using the format "month day, year", we can create a switch structure to check the month value which is range from 0 to 11. If month value is 0, generate string Jan + current day + "," + current year. We generate the date string based on different switch cases (7 - 44). We shall see the output similar to the date string as shown below:

Apr 12,2020

6 0
3 years ago
Other questions:
  • "Once a business operations analysis is completed and change needs to
    7·2 answers
  • I need le help, darn ijourneys
    10·2 answers
  • 4.5 code practice computer science
    5·1 answer
  • How many times do you return after the dateline ?
    12·1 answer
  • OI MINHA PRIMEIRA VEZ AQUI
    7·1 answer
  • the volume of two similar solids are 1080cm and 1715cm .if the curved surface area of the smaller cone is 840cm .fond the curved
    5·1 answer
  • b. Write a complete program for the following situation related to setting the speed of a car to preset values before starting a
    5·1 answer
  • What is an operating system that controls some aspects of the computer?
    10·2 answers
  • _______ is a medium-range wireless network. ________ is a medium-range wireless network. Cellular radio LTE UWB Wi-Fi
    12·1 answer
  • Aaaaaaaaaaaaaaaaplssssssssssssssssssssssssssssshelpppppppppppppppppppppppp
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!