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

Message passing programme development environment, In a multicomputer syste...

In a multicomputer system the computational load amid different processors should be balanced.  To pass information between different nodes message passing technique is used. The p

How to join to mwseries from power builder 8.0, Using CICS Transaction Gate...

Using CICS Transaction Gateway we can join MQ Series with Power Builder 8.0

Inventor, I am the inventor of the railway signaling device now operated by...

I am the inventor of the railway signaling device now operated by timer. I wish to move on to the next phase where the equipment will be operated by DTMF codes. The device is a si

Describe the difference between cache and virtual memory, Question 1: (...

Question 1: (a) What do you meant by an expert system? (b) Describe benefits of the EDI. (c) Describe what you understand by: (i) File Infectors (ii) Boot Sect

What is python?, Python is an interpreter, interactive, object-oriented pro...

Python is an interpreter, interactive, object-oriented programming language. It is frequently compared to Tcl, P e r l, Scheme or Java. Python combines remarkable power with v

Define the concept of encapsulation of OOA, Encapsulation of OOA Encap...

Encapsulation of OOA Encapsulation separates the interface of an abstraction from its implementation. By taking the above example i.e. of a car, we can now categorize them as:

Give some examples of malicious data, Give some examples of malicious data....

Give some examples of malicious data. In May 2002 year, the Norton Anti-Virus software for Windows operating systems detected around 61000 malicious programs. Several of them a

Explain naming convention in arrays, Explanation Arrays in many programm...

Explanation Arrays in many programming-languages generally show a fixed list of values (e.g. a list of lastnames). Though within SQABasic the size for an array can either be fix

Explain shift register with diagram and waveform, Q. Explain Shift register...

Q. Explain Shift register with diagram and waveform.   Q. Write a short note on Decoder.

Build a tv remote control, Communication by devices, such as the HC11 proce...

Communication by devices, such as the HC11 processor, is a key and vital part of most systems that are used in military, commercial, and academic settings.  In fact, most of these

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