Fork isa)the creation of a new jobb)the dispatching of a taskc)increas...
fork() creates a new process by duplicating the calling process, The new process, referred to as child, is an exact duplicate of the calling process, referred to as parent, except for the following : The child has its own unique process ID, and this PID does not match the ID of any existing process group. The child’s parent process ID is the same as the parent’s process ID. The child does not inherit its parent’s memory locks and semaphore adjustments. The child does not inherit outstanding asynchronous I/O operations from its parent nor does it inherit any asynchronous I/O contexts from its parent. So, option (D) is correct.
Fork isa)the creation of a new jobb)the dispatching of a taskc)increas...
The Correct Answer is Option D: The creation of a new process.
Explanation:
- Fork: In computer science, "fork" refers to the operation of creating a new process by duplicating an existing process. It is a fundamental concept in operating systems and is commonly used for multitasking and parallel processing.
Creation of a New Process:
- When a process wants to create a new process, it can use the fork system call. The fork system call creates an exact copy of the existing process, including the code, data, and execution context. The new process is called the "child process," and the existing process is called the "parent process."
- Process: A process is an instance of a program that is being executed. It has its own memory space, execution context, and resources. Multiple processes can run concurrently on a computer system, allowing for multitasking and parallel execution.
Key Points:
- The creation of a new process is the primary purpose of the fork operation.
- Forking allows a process to create a duplicate of itself, resulting in two identical processes running concurrently.
- The child process created by the fork operation starts executing from the same point as the parent process.
- After the fork, the parent and child processes have separate memory spaces and can execute different code paths.
- The child process can perform different tasks or execute different programs from the parent process.
Example:
- Suppose we have a program that performs a complex computation. To speed up the computation, we can fork the process and divide the workload between the parent and child processes. Each process can then work on a separate portion of the computation, effectively utilizing the available CPU cores and reducing the overall computation time.
Conclusion:
- In summary, the fork operation in computer science refers to the creation of a new process by duplicating an existing process. It is used for multitasking, parallel processing, and dividing computational tasks. Therefore, the correct answer is option D: the creation of a new process.