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.
Q. Design Odd-Even Transposition Algorithm? Algorithm: Odd-Even Transposition for I=1 to N { If (I%2 != 0) //i.e. Odd phase {
Search mechanisms in Prolog We can utilize this simple Prolog program to describe how Prolog searches: president(X) :- first_name(X, georgedubya), second_name(X, bush). p
Is it possible to extract data from tables without using the event 'GET' in the report with an appropriate LDB. False. You can extract data from tables using Select stateme
Describe the Assume - Assembler directives ASSUME: This directive would be used to map the segment register names with memory addresses. Syntax is as below: ASSUME SS:
Q. Program for encoding ASCII Alpha numeric? ; A program for encoding ASCII Alpha numeric. ; ALGORITHM: ; create the code table ; read an input
Explain Combinational logic circuits Ans. Combinational logic circuits:- (i) Outputs only depend upon present state of the input. (ii) No memory element present or no f
Q. How to Transmits data in the active message buffer? int pvm_bcast( char *group, int msgtag ) Transmits data in the active message buffer to a group of processes. msgt
Echo suppressor is detrimental to full duplex operation because? This disables one of the two pairs in a four-wire trunk line while a signal is detected upon another pair.
Explain Session Layer of OSI Model. The session layer manages, establishes and terminates communication sessions. Communication sessions contain service of requests and serv
Q. Define the System users? System users are defined as the people who employ information systems or who are affected by information system on a regular basis i.e. validating,
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