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

Compare excess 3 codes and gray code, Compare excess 3 codes and gray cod...

Compare excess 3 codes and gray code. Ans. Excess 3 Codes 1. This is the other form of BCD code. All decimal digits are coded in 4 bit binary code. 2. The code

Define entry section and exit section, Define entry section and exit sectio...

Define entry section and exit section. The critical section problem is to design a protocol that the processes can use to cooperate. Every process must request permission to e

How aliases are used in DNS, How aliases are used in DNS? Explain. CNAM...

How aliases are used in DNS? Explain. CNAME entries are analogous to a symbolic link in a file system- the entry gives an alias for other DNS entry. Corporation of expertsmind

State in brief about the proxy server, State in brief about the proxy serve...

State in brief about the proxy server A proxy server also helps a lot since it hides the real IP addresses of users requesting resources outside the firewall. Finally, the

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

Describe about relationships and look up fields, Relationships are imported...

Relationships are imported from the source to finish without any hindrance but once they land in the destination they can never be changed or changed and change of extensions canno

Sql requirements in the sap development system, Which interface converts SQ...

Which interface converts SQL requirements in the SAP development system to those of the database? Database Interface converts SQL in the SAP.

What are the advantages of using uml, Benefits of using UML breaks the comp...

Benefits of using UML breaks the complex system into discrete pieces that can be understood simply. Handover the system to new team becomes simpler. Complex system can be un

What are the types of instructions, Q. What are the types of Instructions? ...

Q. What are the types of Instructions? Computer instructions are translation of high level language code to machine level language programs. So from this point of view machine

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