Explain the overlay structured program, Operating System

Assignment Help:

Overlay structured program:

A program consisting of overlays is referred as overlay structured program in which an overlay is a part of program which has similar load origin as some other part(s) of the program. Such type of a program contains

a. A permanently resident portion, called the root

b. A set of overlays

The overlay structure of a program is planned by identifying mutually exclusive modules- i.e. modules that do not call each other. The major idea is that such modules do not require residing simultaneously in memory. Therefore they are located in different overlays with similar load origin.


Related Discussions:- Explain the overlay structured program

What is an operating system?, What is an operating system? An operating...

What is an operating system? An operating system is a program that acts as a mediator between a user and the computer hardware. The function of an operating system is to provid

What is the cache coherency problem, Question: (a) Modern processors op...

Question: (a) Modern processors operate in one of two modes: one for the operating system and one for applications. What is the purpose of having these two modes? What are

Memory management, what is hashed page tables & explain of there work & fig...

what is hashed page tables & explain of there work & figure

Timers could be utilized to compute the current time, Q. Timers could be ut...

Q. Timers could be utilized to compute the current time. Provide a little description of how this could be accomplished. Answer: A program could utilize the following ap

List two types of system directories, List two types of system directories ...

List two types of system directories A) Device directory:- Describing physical properties of files. B) File directory :- Giving logical properties of the files.

Define where a program generation activity aims, Define where a Program gen...

Define where a Program generation activity aims  Program generation activity aims at Automatic generation of program

Macro, What is macro expansion

What is macro expansion

Identify main functions of an operating system, Question: Introduction to ...

Question: Introduction to Operating Systems a) Define the term ‘Operating System' and identify main functions of an operating system. b) What are the characteristics of a go

List disadvantages of using a single directory, List disadvantages of using...

List disadvantages of using a single directory. Users have no privacy. Users must be careful in choosing file names, to avoid names used by others. Users may destroy each othe

Garbage collection, The dynamic memory allocator is a layer between the app...

The dynamic memory allocator is a layer between the application and the OS, managing heap objects. When a program requests memory from the allocator (via malloc(), for instance), t

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