It would be the army and then people of nyc
Answer:
Computer
Explanation:
Computer defines to an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
Answer:
Data Flow Diagram
Explanation:
Data flow diagram is representation of data which is processed in terms of input and output.It is a tool for designing the structure for a software.Rectangles,square and circles are used in representing the flow of information.
DFD consists two components
- Layers-It consist many layers,the top layer is called context diagram.
- Levels-The first level shows the main process of the system.
Answer:
See explaination
Explanation:
Given a partial grammar which represents the specification for C++ style variable declaration. In this range a - z indicates terminals that represents the variable names.
'S' is the start symbol of the
non-terminal.
Hence, given,
S= TV
V= CX
Please kindly refer to attachment for further instructions and complete step by step solution.
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.
