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 are the differences between one hot and binary encoding, What are the ...

What are the differences between one hot and binary encoding? Common classifications used to explain the state encoding of an FSM is Binary or highly encoded and one hot. A bin

Diffrence between RISC and CISC architecture, Q. Diffrence between RISC and...

Q. Diffrence between RISC and CISC architecture? CISCs provide better support for high-level languages since they include high-level language constructs such as CASE, CALL etc

Explain sequential logic circuit, Explain Sequential logic circuit An...

Explain Sequential logic circuit Ans. Sequential logic circuit:- (i) Output not only depends upon the recent state of the input but also depend upon the earlier state

Struct and class, https://dl.dropbox.com/u/41918180/Images/Pro%202/2.png ...

https://dl.dropbox.com/u/41918180/Images/Pro%202/2.png https://dl.dropbox.com/u/41918180/Images/Pro%202/3.png https://dl.dropbox.com/u/41918180/Images/Pro%202/4.png">https://dl.d

Explain passing parameters using pointers, Q. Explain Passing Parameters Us...

Q. Explain Passing Parameters Using Pointers ? This method overcomes the drawback of using variable names directly in procedure. It uses registers to pass procedure pointers to

Write the factors considered in designing an i/o subsystem, Write the facto...

Write the factors considered in designing an I/O subsystem? 1.  Data Location: Device selection, address of data within device ( track, sector etc) 2.  Data transfer: Amount

Why does dma have priority over the cpu, Why does DMA have priority over th...

Why does DMA have priority over the CPU when both request a memory transfer? The data transfer monitored by DMA controller which is called as DMA channel. The CPU is included o

Researching strategy - artificial intelligence, Researching strategy - arti...

Researching strategy - artificial intelligence: If our search and researching strategy and swot of it is surety to find all types of hints such the solutions eventually, then

Explain the virtual memory, What is virtual memory?  Virtual memory is ...

What is virtual memory?  Virtual memory is a technique that permits the execution of processes that may not be completely in memory. It is the separation of user logical memory

Define restoring method, Define restoring method? The hardware method j...

Define restoring method? The hardware method just explained is called the restoring method. The reason for this name is that the partial reminder is restored by adding the divi

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