Making a computer system convenient to use i.e. hides details of Hardware resources from the programmer and provides him with a convenient interface of using computer system. It acts as an intermediary between hardware and software providing a high level interface to low level hardware and making it easier for the software to access the use of those resources.
Managing computer resources. This involves performing such tasks as keeping track of who is using which resource, granting resource requests, accounting for resource usage, and mediating conflicting requests from different programs and users.
Steve ju answered the question on June 6, 2018 at 20:17
-
What is a digital circuit?
(Solved)
What is a digital circuit?
Date posted:
June 4, 2018
.
Answers (1)
-
Explain two roles of a computer driver
(Solved)
Explain two roles of a computer driver.
Date posted:
June 4, 2018
.
Answers (1)
-
Name three functions of computer drivers
(Solved)
Name three functions of computer drivers.
Date posted:
June 4, 2018
.
Answers (1)
-
Write a program using C++ language that creates a two-by-three two-dimensional safe array of integers.Demonstrate that it works.
(Solved)
Write a program using C++ language that creates a two-by-three two-dimensional safe array of integers.Demonstrate that it works.
Date posted:
May 29, 2018
.
Answers (1)
-
Using c++ language, create a function called recip() that takes one double reference parameter.Have the function change the value of that parameter into its reciprocal.Write...
(Solved)
Using c++ language, create a function called recip() that takes one double reference parameter.Have the function change the value of that parameter into its reciprocal.Write a program to demonstrate that it works
Date posted:
May 29, 2018
.
Answers (1)
-
Show how to allocate a float and an int by using new. Also, show how to free them by using delete.
(Solved)
Show how to allocate a float and an int by using new. Also, show how to free them by using delete.
Date posted:
May 29, 2018
.
Answers (1)
-
The copy constructor is also involked when a function generates the temporary object that is used as the function's return value. With this in...
(Solved)
The copy constructor is also involked when a function generates the temporary object that is used as the function's return value. With this in mind, consider the following output:
constructing nomally
constructing normally
constructing copy
This output was created by the following program. Explain why, and describe precisely what is occuring.
#include
using namespace std;
class myclass {
public:
myclass();
myclass(const myclass &o);
myclas f();
};
// Normal constructor
myclass::myclass()
{
cout << "Constructing normally\n";
}
// Copy constructor
myclass::myclass(const myclass &ocout << "Constructing copy\n";
}
// Return an object.
myclass myclass::f()
{
myclass temp;
return temp;
}
int main()
{
myclass obj;
obj = obj.return 0;
}
Date posted:
May 29, 2018
.
Answers (1)
-
Imagine a situation in which two classes, called pr1 and pr2, shown below, share one printer.Further imagine that other parts of your program need to...
(Solved)
Imagine a situation in which two classes, called pr1 and pr2, shown below, share one printer.Further imagine that other parts of your program need to when the printer is in use by an object of either of these two classes. Create a function in C++ called inuse() that returns true when the printer is being used by either and false otherwise. Make this function a friend of both pr1 and pr2.
class pri1 {
int printing; //...
public:
pr1 () {printing = 0}
void set_print (int status) {printing = status;}
// ...
};
class pr2 {
int printing;
// ...
public:
pr2 () {printing = 0;}
void set_prt status) {printing = status; }
// ...
};
Date posted:
May 29, 2018
.
Answers (1)
-
When an object of a derived class is assigned to another object of the same derived class, is the data associated with the base class...
(Solved)
When an object of a derived class is assigned to another object of the same derived class, is the data associated with the base class copied? To find out, use the following two classes and write a program that demonstrates what happens.
class base {
int a;
public:
void load_a(int n) { a= n; }
int ge() { return a;}
};
class derived : public base {
int b;
public:
void load_b(int n) {b=n;}
int get_b() {return b;}
};
Date posted:
May 29, 2018
.
Answers (1)
-
Using the stack class, write a function called loadstack() that returns a stack that is already loaded with letters of the alphabet (a-z.). Assign this...
(Solved)
Using the stack class, write a function called loadstack() that returns a stack that is already loaded with letters of the alphabet (a-z.). Assign this stack to another object in the calling routine and prove that it contains the alphabet. Be sure to change the stack size so it is large enough to hold the alphabet.
Date posted:
May 29, 2018
.
Answers (1)
-
Explain five good programming practices
(Solved)
Explain five good programming practices.
Date posted:
May 29, 2018
.
Answers (1)
-
List five examples of softwares
(Solved)
This is a question based on Introduction to Computer Systems unit in Computer science course
Date posted:
May 26, 2018
.
Answers (1)
-
List three categories of operating systems
(Solved)
List three categories of operating systems.
Date posted:
May 26, 2018
.
Answers (1)
-
As a programmer, what is the significance of the Integrated Development Environment(IDE) in programming?
(Solved)
As a programmer, what is the significance of the Integrated Development Environment(IDE) in programming?
Date posted:
May 26, 2018
.
Answers (1)
-
As a programmer, briefly explain why comments are used when writing a program
(Solved)
As a programmer, briefly explain why comments are used when writing a program.
Date posted:
May 26, 2018
.
Answers (1)
-
Define the following terms as used in computer programming: (a.) A compiler (b.) A debugger (c.) An algorithm
(Solved)
Define the following terms as used in computer programming: (a.) A compiler (b.) A debugger (c.) An algorithm
Date posted:
May 26, 2018
.
Answers (1)
-
What is computer programming?
(Solved)
What is computer programming?
Date posted:
May 26, 2018
.
Answers (1)
-
Using an example, differentiate a code from a program
(Solved)
Using an example, differentiate a code from a program.
Date posted:
May 26, 2018
.
Answers (1)
-
Explain three techniques of detecting deadlocks in a computer system
(Solved)
Explain three techniques of detecting deadlocks in a computer system.
Date posted:
May 16, 2018
.
Answers (1)
-
Explain common types of computer networks
(Solved)
Explain common types of computer networks.
Date posted:
May 16, 2018
.
Answers (1)