Get premium membership and access questions with answers, video lessons as well as revision papers.
It is to prevent burn-in(the burning of an image into the phosphor inside the cathode ray tube after hours of the same image being rescanned
hydah kerubo answered the question on June 19, 2018 at 16:03
- How does the problem of scarcity affect the choice of people in consumption of goods and services?(Solved)
How does the problem of scarcity affect the choice of people in consumption of goods and services?
Date posted: June 15, 2018. Answers (1)
- How would a 1970 computer differ from the present?(Solved)
How would a 1970 computer differ from the present?
Date posted: June 10, 2018. Answers (1)
- Outline the steps that are used to remove all documents from a printer.(Solved)
Outline the steps that are used to remove all documents from a printer.
Date posted: June 7, 2018. Answers (1)
- Outline the steps that are used to pause or restart your printer.(Solved)
Outline the steps that are used to pause or restart your printer.
Date posted: June 7, 2018. Answers (1)
- Outline the steps that are used to cancel printing of a document in a computer.(Solved)
Outline the steps that are used to cancel printing of a document in a computer.
Date posted: June 7, 2018. Answers (1)
- Overload the - and / operators for the coord class using friend functions.
(Solved)
Overload the - and / operators for the coord class using friend functions.
Date posted: June 6, 2018. Answers (1)
- Overload the + operator for the coord class so that it is both a binary operator and unary operator. When it is used as a...(Solved)
Overload the + operator for the coord class so that it is both a binary operator and unary operator. When it is used as a unary operator, have the + make any negative coordinate value positive.
Date posted: June 6, 2018. Answers (1)
- Explain the process of preparing and editing a digital audio.(Solved)
Explain the process of preparing and editing a digital audio.
Date posted: June 5, 2018. Answers (1)
- Define the term multimedia and explain the main elements and building blocks of multimedia.(Solved)
Define the term multimedia and explain the main elements and building blocks of multimedia.
Date posted: June 5, 2018. Answers (1)
- Discuss the basic stages of multimedia project development.(Solved)
Discuss the basic stages of multimedia project development.
Date posted: June 5, 2018. Answers (1)
- List and explain five applications of multimedia.(Solved)
List and explain five applications of multimedia.
Date posted: June 5, 2018. Answers (1)
- Define the term "Multimedia" and state its elements.(Solved)
Define the term "Multimedia" and state its elements.
Date posted: June 5, 2018. Answers (1)
- What is wrong with the following function prototype?
char *f(char *p, int x =0, char *q);
(Solved)
What is wrong with the following function prototype?
char *f(char *p, int x =0, char *q);
Date posted: May 31, 2018. Answers (1)
- Given the following class definition,
class test{
char *p;
int *q;
int count;
public:
test(char *x, int *y, int c) {
p = x;
q = y;
count = c;
}
//...
};
Is it possible...(Solved)
Given the following class definition,
class test{
char *p;
int *q;
int count;
public:
test(char *x, int *y, int c) {
p = x;
q = y;
count = c;
}
//...
};
Is it possible to dynamically allocate an array of these objects?
Date posted: May 31, 2018. Answers (1)
- Given the following partial class, add the necessary constructor function so that both declarations within main() are valid.
class samp {
int a;
public:
//add constructor functions
int get_a() {...(Solved)
Given the following partial class, add the necessary constructor function so that both declarations within main() are valid.
class samp {
int a;
public:
//add constructor functions
int get_a() { return a;}
};
int main()
{
samp ob(88); //init ob's a to 88
samp obarray[10]; //nonitialized 10-element array
// ...
}
Date posted: May 31, 2018. Answers (1)
- a)Show how to overload the constructor for the following class so that unitialized objects can also be created. (When creating uninitialized objects, give x and...(Solved)
a)Show how to overload the constructor for the following class so that unitialized objects can also be created. (When creating uninitialized objects, give x and y the value 0.)
class myclass {
int x, y;
public:
myclass(int i, int j) { x=i; y=j;}
// ...
};
b)Using the class from question(a) above, show how you can avoid overload myclass() by using default arguments.
Date posted: May 31, 2018. Answers (1)
- Why would the following be an inappropriate use of an overloaded operator?coord coord:: operator%(coord ob) {double i;cout << "Enter a number:";cin >>i;cout << "root of...(Solved)
Why would the following be an inappropriate use of an overloaded operator?
coord coord:: operator%(coord ob)
{
double i;
cout << "Enter a number:";
cin >>i;
cout << "root of " << i << "is ";
cout << ();
}
Date posted: May 31, 2018. Answers (1)
- Relative to coord, overload the * and / operators. Demonstrate that they work.
(Solved)
Relative to coord, overload the * and / operators. Demonstrate that they work.
Date posted: May 31, 2018. Answers (1)
- Given the following class, show how to add a friend function called isneg() that takes one parameter of type myclass and returns true if num...(Solved)
Given the following class, show how to add a friend function called isneg() that takes one parameter of type myclass and returns true if num is negative and false otherwise.
class myclass {
int num;
public:
myclass(int x) {num = x;}
};
Date posted: May 31, 2018. Answers (1)
- Given the following class,
class summation{
int num;
long sum; //summation of num
public:
void set_sum(int n);
void show_sum () {
cout <(Solved)
Given the following class,
class summation{
int num;
long sum; //summation of num
public:
void set_sum(int n);
void show_sum () {
cout <}
};
void summation::set _sum(int n)
{
int i;
num = n;
sum = 0;
for(i=1; i<=n; i++)
sum += i;
}
a) create a C++ function called make_sum() that returns an object of type summation. Have this function prompt the user for a number and then construct an object having this value and return it to the calling procedure.Demonstrate that the function works.
b)The function set_sum() was not defined in line within the summation class declaration. Give a reason why this might be necessary for some compilers.
Date posted: May 31, 2018. Answers (1)