what is Semaphore and explain with example?, Basic Computer Science

what is Semaphore and explain with example?, Basic Computer Science

Assignment Help:

Description
A semaphore is a confined variable whose value can be accessed and changed only by the operations P and V and initialization operation known as ''Semaphoiinitislize''.
• Binary Semaphores can take for granted only the value 0 or the value 1 counting semaphores also described general semaphores can suppose only nonnegative values.

• The P (or wait or sleep or down) operation on semaphores S, assumed as P(S) or wait (S), controls as follows:
• P(S):

IF S > 0
THEN S := S - 1
ELSE (wait on S)

The V (or signal or wakeup or up) process on semaphore S, written as V(S) or signal (S), controls as follows:
V(S): IF (one or additional process are waiting on S)
THEN (let one of these processes proceed)
ELSE S := S +1

Related Discussions:- what is Semaphore and explain with example?

Deadlocks, What is methods For handling Deadlocks?

What is methods For handling Deadlocks?

Computer theory, convert RE (ab) int FA

convert RE (ab*)* int FA

Read world population data file. store the values in multipl, Read World Po...

Read World Population Data File. Store the values in multiple vectors. Sort them by most populated region and output the results ext file is here : please">http://www.csupomona.

Languages, Languages The language is a program containing rules and...

Languages The language is a program containing rules and guidelines to help us in making programs. There are various languages like C, Basic, COBOL, PASCAL, FORTRAN etc. Th

Intelligent system, why Greedy search is not Optimal

why Greedy search is not Optimal

Digital computer, Digital computer: In the digital computer there are b...

Digital computer: In the digital computer there are basically two types of input, namely Instructions, and Data from the various radio and non-radio sensors, which will be refe

Technology partnerships, Technology Partnerships: Such agreements prov...

Technology Partnerships: Such agreements provide the consumer un-limited access to vendor's technology. Such contracts are typically multi-year in nature where the consumer pa

The terms ''row-major order'' and ''column-major order", What is meant by t...

What is meant by the terms 'row-major order' and 'column-major order'? Ans: (i) Storing the array column by column is called as column-major order and storing the array row by

Alternative approaches for acquiring software, Alternative approaches for a...

Alternative approaches for acquiring software: There are some alternative approaches for acquiring software. They are: i) 'off the shelf' software package ii) 'turnk

Types of software interface, different types of software interfaces which f...

different types of software interfaces which falls in different categories

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

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