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!
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.
What are the disadvantages of a Smart Card? Disadvantages of Smart Cards are as follows: a. The value of money can be depleted and recharged. b. Customers should keep
Game Playing techniques - artificial intelligence: Now we have dispensed with the essential background material for Artificial Intelligence problem solving techniques, and we m
Define Overflow. An overflow is a problem in digital computer due to the width of registers is finite. A result that contains n+ 1 bit cannot be accommodated in a register wit
Classical approach - Canonical genetic algorithm: However returning to the classical approach, as there example, whether solving a particular problem involved finding a set of
Why a task can n ot return a value? If tasks can return values then Let's take a look at the below example. A=f1(B)+f2(C); and f1 and f2 had delays of say 5 and 10? Whe
State the term Availability - organisational security scheme What data needs to be available continually, compared to data which can be "off line" for limited periods. Th
Q. What is Stack and register manipulation? Stack and register manipulation: If we create stacks, stack instructions prove to be useful. LOAD IMMEDIATE is a good illustration
Real time (transaction) processing In real time (transaction) processing files are generally updated in real time (for example when booking flights on an airplane); however in
Q. Show the spawned program? include "pvm3.h" main() { int ptid, msgtag; char buf[100]; ptid = pvm_parent(); strcpy(buf, "hello, world from ");
How does bus arbitration typically work? i. A bus master waiting to use the bus asserts by the bus request. ii. A bus master cannot be the bus until it's request is grant
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