Explain the term overlays, Computer Engineering

Assignment Help:

Explain the term Overlays.

An overlay is an element of program that has the same load origin as several other part of the program. These are used for reduce the main memory requirement of a program. If the problem arises when the size of program exceeds the memory size, so overlays are used. Structure of these programs contains a permanently resident portion, termed as the root.

A set of overlays

To begin with, the root is loaded in memory and specified control for the reasons of execution. Another overlays are overwrites a previously loaded overlay along with similar load origin, this reduces memory requirement of a program. This is also possible to execute programs that size exceeds the memory size.


Related Discussions:- Explain the term overlays

Iscuss the various functions of telephone switching systems, Discuss the va...

Discuss the various functions of telephone switching systems. Telephone switching system's functions are as follows: (i) Attending: The system should be continually monito

Divide two binary numbers, Divide (101110) 2   by (101) 2 Ans. Qu...

Divide (101110) 2   by (101) 2 Ans. Quotient is = -1001 Remainder is = -001

How is transaction processing system affected, How is Transaction Processin...

How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing

Smallest and largest integer , A given microprocessor has words of 1 byte. ...

A given microprocessor has words of 1 byte.  What is the smallest and largest integer that can be characterized in the following representations?   a) unsigned b) sign- ma

In order to concatenate strings only for output purposes, In order to conca...

In order to concatenate strings only for output purposes which command can be used in conjunction with the 'Write' statement. NO-GAP command.

Towers of hanoi problem, The Towers of Hanoi Problem Towers of Hanoi pro...

The Towers of Hanoi Problem Towers of Hanoi problem is described. There are three pegs on which disks are "threaded" (there are holes in the disks to allow them to be placed on

Chains of inference, Chains of Inference: Now we have to look at how t...

Chains of Inference: Now we have to look at how to get an agent to prove a given theorem using various search strategies? Thus we have noted in previous lectures that, there i

Explain scripts and libraries introduction, Scripts A script within Rati...

Scripts A script within Rational Robot is a file that haves a sequence of SQABasic code. The extension of the file is always ".REC". Typically the script have an automated testc

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