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

Programming, Which is the best programming language to learn?

Which is the best programming language to learn?

Depth - basic characteristics of an experts system, An expert system has d...

An expert system has death that is it operate effectively in a narrow domain containing difficult challenging problems. Thus the rules in an experts systems are necessarily co

Minterms, A minterm is an AND expression involving all input variables in e...

A minterm is an AND expression involving all input variables in either inverted or non-inverted form.For one particular row the associated mintermis the only minterm which equals l

An append structure with pooled or cluster tables, Can we include customizi...

Can we include customizing include or an append structure with Pooled or Cluster tables? No.

Determine the current allocation state and granted process, An operating sy...

An operating system contains 3 resource classes. The number of resource units in these classes is 7, 7 and 10. The current resource allocation state is shown below:

Distinguish between ROM, Distinguish between ROM, PROM, EPROM, EEPROM. ...

Distinguish between ROM, PROM, EPROM, EEPROM. Ans: ROM: It also called Read Only Memory is a Permanent Memory. The data is permanently stored and cannot be changed in Perm

Explain the term- looking at existing paperwork, Explain the term- Looking ...

Explain the term- Looking at existing paperwork This allows analyst to see how paper files are kept and look at operating instructions and check accounts, training manuals etc

Explain briefly the function of layers, Explain briefly the function of dif...

Explain briefly the function of different layers which are covered under end to end layer connectivity. Different layer are as follows: 1. Transport Layer:  This is res

What is critical section problem, What is critical section problem? A ...

What is critical section problem? A race condition at data item occurs when many processes simultaneously update its value data consistency, needs that only one process should

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