Process abstraction in operating systems, Operating System

Many early operating systems regarded processes as different timesharing users. The process abstraction is a popular way to organize concurrent programs, but it is not the only choice. In order to build an editing system for multiple users, a traditional organization would be that each user runs as a separate process, all those processes executing the same code, which is shared among them. An alternative organization would be for each user to send a request to a single editing server process. This corresponds to a process abstraction with a single server process that maintains queues of work to do: this process never blocks as long as there is work to do, but completes (natural break), each work item it starts then switches to working on another pending work item. In particular, the application does not block awaiting input but instead polls to find if input from another client is available: processing requests are typically divided into several work items that may be immediately queued for work to be done, Requests may be delayed pending completion of other work requests. The server process opens, modifies, and saves files on behalf of any of its clients. Discuss this alternative vis-à-vis implementing the program as per user processes coordinated by a general-purpose operating system.

Posted Date: 2/22/2013 1:30:11 AM | Location : United States







Related Discussions:- Process abstraction in operating systems, Assignment Help, Ask Question on Process abstraction in operating systems, Get Answer, Expert's Help, Process abstraction in operating systems Discussions

Write discussion on Process abstraction in operating systems
Your posts are moderated
Related Questions
i am just wondering if you have expert in nachos operating system thank you

A practical task specified in the Study Guide, Computer architecture, was to record your computer's specifications. Submit the data you recorded, which will contain the following d

Since most of the programs require a lot of memory allocation/deallocation, we expect the memory management to be fast, to have low fragmentation, make good use of locality, and be

Explain Wait for Graph a. Use a resource allocation graph to derive a wait-for graph.  b. Wait-for graph acquired by making an edge from p 1 to p 2 iff p 1 is waiting for

What is an operating system and what are the different types of operating systems? Operating System An Operating System or OS is a software program that allows the compute

Write a short note about schedulers. Processes migrate between the various scheduling queues throughout its life time. The operating system should select for scheduling purpose

BENEFITS OF THREADS OVER PROCESS If implemented correctly after those threads have some advantages of (multi) processes, they take: 1. Less time to create a new thread tha

Q. Present an algorithm for reconstructing a logical ring after a process in the ring fails? Answer: Typically distributed systems utilize a coordinator process that performs

Ok so i think i got this right by not 100% on this. what I want to figure out is if there are x visitors that can line up for a ride but only 1 passenger can get on the ride at a t

Networks and operating systems have a lot of overlap. In this course, however,we are not going to discuss networking in detail, but rather focus on the networking abstractions prov