What type of program would you use to create a personal budget?

A computer essentially takes input, processes it, and produces output. Which person developed a machine in the mid-1880s that ac

MakcuM [25]

Answer:

The answer to this question is given below in the explanation section. the correct answer is Herman Hollerith.

Explanation:

Charles Babbage (incorrect)

Charles Babbage considers the father of the digital computer. He was a mathematician, philosopher, inventor, and mechanical engineer, Babbage originated the concept of a digital programmable computer. But he died on 18 1, 1871. so, this option is not correct.

John William Mauchly (Incorrect)

John William Mauchly was an American physicist who, along with J. Presper Eckert, designed ENIAC, the first general purpose electronic digital computer, as well as EDVAC, BINAC and UNIVAC I, the first commercial computer made in the United States. But John William Mauchy born on August 30, 1907 and died on January 8, 1980. So, this option is not correct.

Sir John Ambrose Fleming (Incorrect)

Sir John Ambrose Fleming was an English electrical engineer and physicist who invented the first thermionic valve or vacuum tube, designed the radio transmitter with which the first transatlantic radio transmission was made, and also established the right-hand rule used in physics.

Herman Hollerith (correct)

Herman Hollerith was an American businessman, inventor, and statistician who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting. This machine is patented in 1884.

7 0

3 years ago

A structure, in C, has been given by: struct MYSTRUCT { char buf[15] shorts S int i; } * Select the proper keywords in the prope

vodka [1.7K]

Answer:

MYSTRUCT myStruct[8]; // statemnt to create an array of struct variables

myStruct[3].buf[4] // statement to access the fourth element of the array of the struct variables.

struct * MYSPTR = &myStruct; // This statement creates a pointer.

To dereference and access the S variable of the struct data structure in the array;

(*MYSPTR).S and its shorthand notation MYSPTR -> S

Explanation:

A structure is a data structure in C language that is used to hold descriptive data of an object. The keyword struct is used to create the structure. An array of struct holds instances of a struct variable, where each struct can be accessed using the regular array indexing and the variables of the structs in the array can be accessed using dot notation.

7 0

3 years ago

When driving, you should scan a minimum of_seconds ahead of you. A.5 B.10 C.15 D.20

sveta [45]

Answer:C

Explanation:

15

6 0

3 years ago

Suppose you are implementing the Comparable interface in a class representing a Book, where the ordering is based on the number

guapka [62]

Answer:

Following are the code to this question:

public class Book implements Comparable<Book> //defining a class that inherits the interface

{

int numPage; //defining integer variable numPage

int getNumPage()//defining a method getNumPage

{

return numPage; //use return keyword to return numPage value

}

int compareTo(Book b)//defining a method compareTo that uses Book instance b

{

//using multiple conditions

if (getNumPage() > b.getNumPage())//defining if block that checks getNumPage method value is greater then instance of getNumPage

{

return 1; //return value 1

}

else if (getNumPage() == b.getNumPage())//defining else if block that checks method and its instance value is euqal

{

return 0;//return 0

}

else //defining else block

{

return -1;//return value -1

}

Explanation:

In the above-given code, a class book is defined, that inherits the interface that is "Comparable<Book>". Inside the class, an integer variable "numPage" and a method "getNumPages" is defined, that returns the "numPage" value.

In the next step, the "compareTo" method is declared, which uses an instance of the book and use the conditional statement.

In the if block, It checks the "getNumPages" method value is greater than the instance of the "getNumPages" method if the value is true, it will return "1", otherwise goto else if block.
In this block, it will check both "method and instance of method" values are equal, if the condition is true, it will return "0".
In the else block, if the above condition is false, it will return the value that is "-1".

4 0

3 years ago

Write a program to find the transpose of a 5x5 matrix. You have toask the user to enter the values for input matrix. Transpose i

skelet666 [1.2K]

C++ program for finding transpose of matrix

#include<iostream>

using namespace std;

//driver function

int main()

{

int matrix[5][5], transpomat[5][5], r, c;

//Taking row number as input from user and storing in r

cout<<"Enter the number of row: ";

cin>>r;

//Taking column number as input from user and storing in c

cout<<"Enter the number of column: ";

cin>>c;

/* Taking elements of matrix as input from user

*/

cout<<"Enter elements: "<<endl;

for(int a =0;a<r;a++) {

for(int b=0;b<c;b++) {

cin>>matrix[a][b];

}

// Loop for finding transpose matrix

for(int a=0;a<r;a++) {

for(int b=0;b<c;b++) {

transpomat[b][a] = matrix[a][b];

}

//Printing the transpose matrix

cout<<"Transpose of Matrix: "<<endl;

for(int a=0;a<c;a++) {

for(int b=0;b<r;b++) {

cout<<transpomat[a][b]<<" ";

/* Formatting output as a matrix

*/

if(b==r-1)

cout<<endl;

}

return 0;

}

Output

Enter the number of row:3

Enter the number of column:3

Enter elements:

1 4 6

2 9 5

6 3 6

Transpose of Matrix:

1 2 6

4 9 3

6 5 6

4 0

4 years ago