How a file can be shared among different users, Computer Engineering

Assignment Help:

Discuss the different techniques with which a file can be shared among different users.

Several popular techniques with that a file can be shared among various users are:

1. Sequential sharing: In this technique of sharing, a file can be shared through only one program at a time, it is file accesses by P1 and P2 are spaced-out over time. A lock field can be utilized to implement it. Setting and re-setting of the lock at file open and close makes sure that only one program can utilize the file at any time.

2. Concurrent sharing: Some number of programs may share a file concurrently. While this is the case, this is essential to ignore mutual interference among the

m. There are three categories of concurrent sharing:

a. Immutable files: If a file is shared into immutable mode, no one of the sharing programs can modify it. Such mode has the advantage that sharing programs are independent of one more.

b. Single image immutable files: There the changes made by one program are instantly visible to other programs. The Unix file system utilizes this file- sharing mode.

c. Multiple image mutable files: There many programs can concurrently update the shared file. All updating program creates a latest version of the file that is different from the version created through concurrent programs. Such sharing mode can only be utilized in applications where the existence of multiple versions and concurrent updates are meaningful.


Related Discussions:- How a file can be shared among different users

What do you mean by e-brokerage, What do you mean by e-brokerage? E-bro...

What do you mean by e-brokerage? E-brokerage is an investment house which permits you to buy and sell stocks and acquire investment information through its Web site. E-comme

C, "Super ASCII", if it contains the character frequency equal to their asc...

"Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the ascii values will starts from

Interconnection network, Interconnection Network Introduction Th...

Interconnection Network Introduction This unit discusses the types and properties of interconnection networks.  In multiprocessor systems, there are multiple I/O modules

What is machine.config, What is Machine.config?  Machine configuration ...

What is Machine.config?  Machine configuration file: The machine. config file contains settings that apply to the whole computer.  The machine.config, which can be found in the

Determine the performance of a parallel algorithm, Q. Determine the perform...

Q. Determine the performance of a parallel algorithm? One more method of determining the performance of a parallel algorithm can be performed after calculating a parameter know

Table - tr and td tags, Table, TR and TD Tags Three tags form the essen...

Table, TR and TD Tags Three tags form the essential ingredients for creating a table. TABLE: This is the main tag. It tells the browser that a table follows. It has attrib

What is logical address space and physical address space, What is logical a...

What is logical address space and physical address space? The set of all logical addresses generated by a program is known as a logical address space; the set of all physical a

Describe the term- system analyst design, Describe the term- System analyst...

Describe the term- System analyst Design Once analysis has taken place and systems analyst has some idea of the scale of problem and what needs to be done, subsequent stage is

Value - elements of composition, Value Value is the relative amount of ...

Value Value is the relative amount of light and darkness in an image or a particular colour within an image. Value is also known as Tone and refers to the way the artist has re

Telnet services, java program for implementation of telnet services

java program for implementation of telnet services

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