Answer:
This is the complete correct program:
#include <stdio.h>
#include<sys/types.h>
#include<unistd.h>
int value = 128;
int main()
{
pid_t pid;
pid=fork();
if (pid==0) /* child process */
{
value +=8;
return 0; }
else if (pid > 0) {/* parent process */
wait (NULL);
printf ("PARENT: value =%d\n" ,value); /* LINEA */
return 0;
}
}
The output of the LINE A is:
PARENT: value = 128
Explanation:
The fork() function used in the program creates a new process and this process is the child process. The child process is same as the original process having its own address space or memory.
In the child process the value of pid is 0. So the if condition checks if pid==0. Then the child process adds 8 to the value of its variable according to the following statement
value +=8;
Now the original process has value = 128. In else if part the parents process has the value of pid greater than zero and this portion of the program is of the parent process :
else if (pid > 0)
{ wait (NULL);
printf ("PARENT: value =%d\n" ,value);
return 0; }
So the value 128 is printed at the end in the output.
wait(NULL) is used to wait for the child process to terminate so the parent process waits untill child process completes.
So the conclusion is that even if the value of the variable pid is changed in the child process but it will not affect the value in the variable of the parent process.
Hi!
The mouse and the keyboard are <em>input devices. </em>By using them, we can input data which will give us a (hopefully) desired output!
For example...
Just by using my keyboard to type, I'm inputting data in the form of ASCII characters and symbols.
By using my mouse to click on an area so I can move this sentence on a new line, I had to input a request to do such!
Hopefully, this helps! =)
Answer:
Process - centered technique
Explanation:
Process - centered technique -
It is the method , where the useless or waste data is converted to some useful information , is referred to as process - centered technique .
This conversion process requires some activities , like maintenance/support , implementation , design , analysis and planning .
Hence , from the given information of the question,
The correct option is Process - centered technique .
You would click the right button to a shortcuts
Answer:
It will bring more verstality in his website. He will be able to define tags.
Explanation:
XML allows to define your own tags. You can bring semantics into your website which make data browsing easier.
