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Julli [10]
3 years ago
6

Who found the first computer bug in 1947, and invented the concept of a compiler in 1952

Computers and Technology
1 answer:
Anastaziya [24]3 years ago
3 0

Grace Hopper is credited with the first documented computer bug. She also devoped the first compiler, while working at Remington in 1952.

You might be interested in
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
2 years ago
True or False?
Nadya [2.5K]

False.

The different between break and continue instruction is that with break you exit the loop, and with continue you skip to the next iteration.

So, for example, a loop like

for(i = 1; i <= 10; i++){

   if(i <= 5){

       print(i);

   } else {

       break;

   }

}

will print 1,2,3,4,5, because when i=6 you will enter the else branch and you will exit the loop because of the break instruction.

On the other hand, a loop like

for(i = 1; i <= 10; i++){

   if(i % 2 == 0){

       print(i);

   } else {

       continue;

   }

}

Will print 2,4,6,8,10, because if i is even you print it, and if i is odd you will simply skip to the next iteration.

6 0
3 years ago
Please write a complete program to calculate monthly payment given
jasenka [17]

Explanation:

Code with comments:

#include <stdio.h>

#include <math.h>  

/* math library is required to use pow() function

First we need to create a function to calculate the Monthly Payment

It would take three inputs Rate, Years, and Principle amount

Then we converted the Rate and Months according to problem statement

pow() function is used to find (1+R)^M

Then finaly this function returns the value of Monthly Payment  */

float MonthlyPay(float R, int M, int P)

{

    R=R/1200;

    M=M*12;

   float po=pow((1+R),M);

   float PayM=(R+(R/(po-1)))*P;

    return PayM;

}

/*  In the main() function we get 3 inputs from the user Years, Rate and Principle amount

then we call the MonthlyPay function and pass it 3 inputs that we got from the user

then we calculated the total Payment by multiplying the Monthly Pay and total number of months

then we calculated the interest Amount by subtracting the Principle Amount from total Pay

Testing is performed and output result is given at the end and also attached in the image   */

int main(void)

{

    float Rate;

    int Year, Amount;

    printf("Enter Years: ");

    scanf("%d",&Year);

    printf("Enter Rate: ");

    scanf("%f",&Rate);

    printf("Enter Principle Amount: ");

    scanf("%d",&Amount);

   

    float Pay = MonthlyPay(Rate, Year, Amount);

    printf ("Monthly Payment is: %f \n", Pay);

    float totalPay=Pay*Year*12;

    printf ("Total Payment is: %f \n", totalPay);

    float interest=totalPay-Amount;

    printf ("Interest Expense is: %f \n", interest);

    return 0;

}

Output:

Enter Years: 5

Enter Rate: 7

Enter Principle Amount: 12200

Monthly Payment is: 241.572767

Total Payment is: 14494.367188

Interest Expense is: 2294.367188

7 0
3 years ago
Cuáles son las partes más importantes de una flor​
castortr0y [4]

Answer:

estas son

Explanation:

El cáliz. Está formado por los sépalos, que son un conjunto de hojas verdes en la base de la flor.

La corola. Está formada por los pétalos que son hojas coloreadas en el interior de los sépalos.

Los estambres. Son los órganos masculinos de la flor. ...

El pistilo. Es el órgano femenino de la flor.

7 0
3 years ago
Microsoft Edge offers a pane where you can access favorite webpages, open webpages saved to your Reading list, and view the hist
shutvik [7]

Answer:

Hub      

Explanation:

A Hub is a networking tool linking of the different devices or other networking devices.In comparison to router or other a Hub has not routing tables or the guidance where it will sends the information and transmits the data in the network in the respective link.

The hub is used in the Microsoft Edge that provides a panel where we can access favorite web pages. The hub is also used in the  history of the previously visited web pages .

7 0
3 years ago
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