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

Propositional truth tables, Propositional truth tables: There {X\t} is...

Propositional truth tables: There {X\t} is a substitution that replaces all occurances of variable X with a term representing an object t as:  ∀X. A is true if and only

What is public-key infrastructures, a. What are the differences among conve...

a. What are the differences among conventional signatures and digital signatures? Write a short note on "Attacks on digital signature". b. What is Public-Key Infrastructures

Advantages and disadvantages of structured analysis, Advantages and Disadva...

Advantages and Disadvantages of Structured Analysis With time, you will find out that most customers understand structured methods better than object oriented (OO) methods. As

Signaling - universal serial bus , Signaling - Universal Serial Bus: U...

Signaling - Universal Serial Bus: USB supports following signaling rates: o   A low speed rate of 1.5 Mbit/s is defined by USB 1.0. This is so much similar to "full speed"

Explain design of adder, Q. Explain Design of adder? Adders play one of...

Q. Explain Design of adder? Adders play one of the most significant roles in binary arithmetic. As a matter of fact fixed point addition is frequently used as a simple measure

Pros and cons of assembly language, Pros and Cons of Assembly Language ...

Pros and Cons of Assembly Language The following are a number of advantages / disadvantages of employing assembly language: Assembly Language offers more control over ha

What is a microinstruction, What is a microinstruction? Each word in co...

What is a microinstruction? Each word in control memory having within it a microinstruction.  The microinstruction specifies one or more micro-operations for the system.  A seq

Radius of curvature in differential calculas, find the radius of curvature ...

find the radius of curvature at the point (3,3) at a point x3+xy2-6y2=0?

What is ale and explain the functions of ale in 8085, ALE-> Address latch e...

ALE-> Address latch enable...In the case of microcontroller (8051)& microprocessor 8085 the data line and low order 8 bit address lines are multiplexed. In order to getting address

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