Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Not Recently Used Page Replacement Algorithm
The not recently used abbreviated as NRU page replacement algorithm works on the subsequent principle: while a page is referenced, a referenced bit is set for that page, marking it as referenced. Likewise, while a page is modified (written to), a modified bit is set. At a specific fixed time interval, the clock interrupt triggers and clears the referenced bit of all the pages, thus only pages referenced in the current clock interval are marked with a referenced bit. When a page requires to be replaced, the operating system categorizes the pages into four classes:
a) Class 0: not referenced, not modified b) Class 1: not referenced, modified c) Class 2: referenced, not modified d) Class 3: referenced, modified.
The NRU (Not recently used) algorithm picks a random page from the lowest category for removal.
Compare the memory devices RAM and ROM. Ans. Comparison of Semi-conductor Memories RAM ands ROM The advantages of ROM are: 1. This is cheaper than RAM. 2. This is non-volatil
Q. What is Internet Routing Hierarchy? So how do packets find their way across Internet? Does every computer connected to Internet know where other computers are? Do packets ba
Define system space. Management routines are part of the operating system of the computer. It is suitable to assemble the OS routines into a virtual address space.
This unit starts by discussing the importance of involving users in the interaction design process, explaining the reasons why user involvement can be useful, the different degrees
Q. Illustrate the history of computers? Let's now consider history of computers since this will give fundamental information about technological development trends in computer
Write your text, format text, insert picture through Object window or INSERT -> IMAGE. Insert Menu provides you all features which are available under the Object window. Modify men
The "turn-around" time of a user job is the? Ans. Total time taken to execute the job is called "turn around" time.
Define Rules for Reducing Karnaugh Maps? The rules for reducing Karnaugh Maps (k- maps) are as follows: All of the 1's in the Karnaugh Map are called as minterms. The
Double Negation : All parents are forever correcting their children for the find of double negatives, there we have to be very alert with them in natural language like: "He d
What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why? Abstract classes are closely related to interfaces. They are classe
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd