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

Explain the storage class static, Explain the Storage Class Static Th...

Explain the Storage Class Static The Storage Class Static : Static declarations have two important and distinct uses. The more elementary use is to allow a local variable to

Explain all the categories of common control switching, Explain all the cat...

Explain all the categories that are served by Common Control switching. Common Control Switching System: It is a functional block diagram of a common control switching system i

Which term is associated with snmp, Which term is associated with SNMP? ...

Which term is associated with SNMP? MIB is related with SNMP.

Very long instruction word architecture, Superscalar architecture was desig...

Superscalar architecture was designed to increase the speed of the scalar processor. But it has been realized it's not easy to apply. Subsequent are a number of problems faced in t

What is big endian and little endian format, What is big endian and little ...

What is big endian and little endian format? The name big endian is used when lower byte addresses are used for the more important of the word. The name little endian is used f

The mercantile process model, The mercantile process model consists of whic...

The mercantile process model consists of which of the pahase(s): The pre-purchase phase. Purchase consummation phase. Post-purchase Interaction phase.

Types of port, Define port? Give types of port available? Ans: An I/O in...

Define port? Give types of port available? Ans: An I/O interface consists of circuitry needed to connect an I/O device to computer bus. One side consists of a data path contain

Xml can play when dynamically generating html pages , Explain the role that...

Explain the role that XML can play when dynamically generating HTML pages from a relational database? Ans) Even if student has never participated in a project involving this typ

Why do businesses need systems analysts, Q. Why do businesses need systems ...

Q. Why do businesses need systems analysts? A computerized system allows an organization to provide accurate information and respond faster to queries, events etc. If a busines

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