Answer: keeps confidential documents secure,
displays a GUI, allocates the computer's resources, and retrieves files
Explanation:
The operating system can be defined as the software installed in the system that provides the information and services to the users by controlling the hardware, software resources, and regulates the computer programs. It runs the applications and programs in the system, displays the graphic user interface for the services, stores, manipulates, and retrieves files. It prevents the unauthorized access to the data and programs by using passwords thus provides the security to the system and documents.
Answer:#include <stdio.h>
int main() {
int num;
printf("Enter an integer: ");
scanf("%d", &num);
// true if num is perfectly divisible by 2
if(num % 2 == 0)
printf("%d is even.", num);
else
printf("%d is odd.", num);
return 0;
}
Keyboard would be the correct answer
Void test(char *s)
{
int i, d;
sscanf(s, "%i", &i);
printf("%s converts to %i using %%i\n", s, i);
sscanf(s, "%d", &d);
printf("%s converts to %d using %%d\n", s, d);
}
int main()
{
test("123");
test("0x123");
return 0;
}
outputs:
123 converts to 123 using %i
123 converts to 123 using %d
0x123 converts to 291 using %i
0x123 converts to 0 using %d
As you can see, %i is capable of parsing hexadecimal, whereas %d is not. For printf they're the same.
