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

What is java awt, An AWT stands for Abstract Window Toolkit. AWT handles pr...

An AWT stands for Abstract Window Toolkit. AWT handles programmers to develop Java applications with GUI components, like windows, and buttons. The Java Virtual Machine (JVM) is re

What is cursor, What is Cursor? Cursor is a database object used by app...

What is Cursor? Cursor is a database object used by applications to manipulate data in a set on a row-by- row basis, instead of the typical SQL commands that operate on all the

What is a process scheduling, What is a Process Scheduling? Scheduling...

What is a Process Scheduling? Scheduling is a key element of the workload management software that usually performs several or all of: Queuing Scheduling Monito

Clustering-coefficient- artificial intelligence, This programming assignmen...

This programming assignment is about computing topological properties of Protein-Protein Interaction (PPI) networks. Recall that a PPI network is represented by a graph G=(V,E) whe

Define colspan and rowspan, Q. Define Colspan and Rowspan? Now let's se...

Q. Define Colspan and Rowspan? Now let's see how to work with COLSPAN (Column Span) and ROWSPAN (Row Span). If we want cell containing Ajay in Figure to be extended to the next

Placement algorithm - process allocation, Placement algorithm - computer ar...

Placement algorithm - computer architecture: Different strategies can be taken as to how space is allocated to processes: First fit : Allocate the first hole that is la

Direct mapped cache - computer architecture, Direct Mapping: In this p...

Direct Mapping: In this particular technique, block j of the primary memory maps onto block j modulo 128 of the cache. The primary memory blocks 0,128,256,...is loaded

Difference among java beans & servlets, Java bean is a reusable component, ...

Java bean is a reusable component, where as the servlet is the java program which extends the server capability.

Name the numerous household devices, Name the Numerous household devices ...

Name the Numerous household devices Numerous household devices now use microprocessors to control their different functions. The following is just a sample of common devices (d

Define the term web service with example, Define the term web service with ...

Define the term web service with example. A web service is an application that operate over a network-typically, over the Internet. Most typically, a web service is an API that

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