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# Give two benefits of using threads in programs. Then give three threads figures? (lop) (lop) * following code segment shows fork() Pask system call usage Please write exact output to for child and porent process. ( r p int global =100 ; int main (i & pid-t pid; if (pid = fork () <0 ) child fprintf (stdder, "Forl failed"); exit (-1) ; 2else if (p:d>0) { wat (vulc) ; glabal = glabal =75 ; print f^prime prime(16 mathrm(bal)=-% mathrm(dl) , , global): operatorname(esit)(0)= 2else { global = global +100 ; print f^prime prime Global =% d ln ", global); exit (a) ; ) * What de the differences between process and thread? Explain and give figures. (SP) (LO 8, LO4)
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Process and thread are both fundamental concepts in operating systems, and they play a crucial role in multitasking and resource management. Here are the key differences between a process and a thread:1. Definition: A process is an instance of a computer program that is being executed, while a thread is a separate flow of execution within a process.2. Resource allocation: Each process has its own memory space and system resources, while threads within the same process share the same memory space and resources.3. Communication: Processes communicate with each other through inter-process communication (IPC) mechanisms, while threads communicate with each other through shared memory and synchronization primitives.4. Creation and termination: Creating a new process is more expensive than creating a new thread, as it requires duplicating the entire memory space and resources of the parent process. Similarly, terminating a process is more expensive than terminating a thread.5. Scheduling: Processes are scheduled by the operating system's process scheduler, while threads are scheduled by the operating system's thread scheduler within the process.Here is a simple figure to illustrate the differences between a process and a thread:In the figure, the rectangle represents the memory space and resources allocated to a process. The dashed lines represent the communication mechanisms between processes, such as pipes or sockets. The solid lines within the rectangle represent the threads within the process, which share the same memory space and resources.In summary, a process is an independent entity with its own memory space and resources, while a thread is a separate flow of execution within a process that shares the same memory space and resources.