Explain concurrent sharing, Computer Engineering

Assignment Help:

Explain Concurrent Sharing

Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. There are three types of concurrent sharing:

1. Immutable files: If a file is shared in immutable mode, none of the sharing programs can alter it. This mode has the benefit that sharing programs are independent of one another.

2. Single image immutable files: Here the modifications made by one program are instantaneously visible to other programs. The UNIX file system employs this file-sharing mode.

3. Multiple image mutable files: Here several programs can concurrently update the shared file. Each updating program makes a new version of the file that is different from the version made by concurrent programs.

This sharing mode can just only be used in applications in which concurrent updates and the existence of several versions are meaningful.


Related Discussions:- Explain concurrent sharing

Benefits of device controllers, Q. Benefits of Device controllers? Usin...

Q. Benefits of Device controllers? Using device controllers for attaching I/O devices to a computer system in place of connecting them directly to system bus has subsequent ben

Implement or, Q. Write a program to implement OR, NOR, AND and NAND gates ...

Q. Write a program to implement OR, NOR, AND and NAND gates using and without using Bit wise operator. The menu should be as follows: I. Using Bit Wise operator II. Withou

Explain advantages and disadvantages of static document, Explain Advantages...

Explain Advantages and Disadvantages of Static Document. The chief advantages of a static document are reliability, performance and simplicity. A browser can display a static d

What is the necessity of interfacing in digital ic, What is the necessity o...

What is the necessity of Interfacing in digital ICs and what are the points to be kept in view, while interfacing between TTL gate and CMOS gate? Ans: To realize the optimum

How can we set the table spaces and extent sizes, How can we set the table ...

How can we set the table spaces and extent sizes? You can state the extent sizes and the table space (physical storage area in the database) in which a transparent table is to

What is a binary tree, What is a binary tree? A binary tree 'T' is desc...

What is a binary tree? A binary tree 'T' is described as A finite set of elements, known as nodes, such that: either (i) or (ii) happens: (i) T is empty (known as the 'nu

By which finders are connected, In step by step switching line finders are ...

In step by step switching line finders are connected to the (A) Calling subscriber.                   (B) Switching network. (C) Called subscriber.                    (

An example subroutine call, Create your own Subprogram that does *not* use ...

Create your own Subprogram that does *not* use any input parameters. You decide the theme. You should give the pseudocode and an example Subroutine call. Be sure to give an overvie

Use of intrinsic functions in fortran, Q. Use of Intrinsic Functions in FOR...

Q. Use of Intrinsic Functions in FORTRAN? HPF initiates some new intrinsic functions also to those defined in F90. The two mainly often used in parallel programming are system

Explain about registers, Q. Explain about Registers? A register is a gr...

Q. Explain about Registers? A register is a group of flip-flops that store binary information and gates that controls when and how information is transferred to register. An n-

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd