The producer consumer problem is a synchronization problem. There is a fixed size buffer and the producer produces items and enters them into the buffer. The consumer removes the items from the buffer and consumes them. A producer should not produce items into the buffer when the consumer is consuming an item from the buffer and vice versa. So the buffer should only be accessed by the pro.....

A remote procedure call is an interprocess communication technique that is used for client-server based applications. It is also known as a subroutine call or a function call. A client has a request message that the RPC translates and sends to the server. This request may be a procedure or a function call to a remote server. When the server receives the request, it sends the required respo.....

A deadlock happens in operating system when two or more processes need some resource to complete their execution that is held by the other process. A deadlock occurs if the four Coffman conditions hold true. But these conditions are not mutually exclusive. They are given as follows: There should be a resource that can only be held by one process at a time. In the diagram below, there is .....

Message passing model and shared memory model are models of interprocess communication. Details about these are given as follows: Message passing model allows multiple processes to read and write data to the message queue without being connected to each other. Messages are stored on the queue until their recipient retrieves them. Message queues are quite useful for interprocess communicat.....

Multithreading allows the execution of multiple parts of a program at the same time. These parts are known as threads and are lightweight processes available within the process. Therefore, multithreading leads to maximum utilization of the CPU by multitasking. The main models for multithreading are one to one model, many to one model and many to many model. Details about these are given as.....

Process communication is the mechanism provided by the operating system that allows processes to communicate with each other. This communication could involve a process letting another process know that some event has occurred or transferring of data from one process to another. One of the models of process communication is the shared memory model. The shared memory in the shared memory mo.....

A thread is a lightweight process that can be managed independently by a scheduler. It improves the application performance using parallelism. A thread shares information like data segment, code segment files etc. with its peer threads while it contains its own registers, stack, counter etc. The two main types of threads are user-level threads and kernel-level threads. A diagram that demo.....

Interprocess communication is the mechanism provided by the operating system that allows processes to communicate with each other. This communication could involve a process letting another process know that some event has occurred or transferring of data from one process to another. A diagram that illustrates interprocess communication is as follows: The models of interprocess communica.....

Context Switching involves storing the context or state of a process so that it can be reloaded when required and execution can be resumed from the same point as earlier. This is a feature of a multitasking operating system and allows a single CPU to be shared by multiple processes. A diagram that demonstrates context switching is as follows: In the above diagram, initially Process 1 is r.....

Interprocess communication is the mechanism provided by the operating system that allows processes to communicate with each other. This communication could involve a process letting another process know that some event has occurred or the transferring of data from one process to another. A diagram that illustrates interprocess communication is as follows: Synchronization is a necessary p.....