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

Application layer in tcp/ip model corresponds to for what, Application laye...

Application layer (layer 4) in TCP/IP model corresponds to? In OSI model, application layer (layer 4) in TCP/IP model corresponds to layer 6 and layer 7.

What is a macro, What is a macro ? How it is defined ? Preprocessor' is...

What is a macro ? How it is defined ? Preprocessor' is a translation phase that is applied to  source code before the compiler  proper  gets  its  hands on  it.  Generally,  th

Where can i find conference information, Georg Thimm handles a webpage that...

Georg Thimm handles a webpage that lets you search for upcoming or past conferences in a range of AI disciplines.

Elucidate in brief the functions of the clock generator chip, Elucidate in ...

Elucidate in brief the functions of the clock generator chip, 8284. 8284 Clock generator: 8284 is an ancillary component to the microprocessors. Without clock generator, many

Find traffic offered and lost, Discuss grade of service. During busy hour, ...

Discuss grade of service. During busy hour, 1500 calls were offered to a group of trunks and 8 calls were lost. The average call duration was 120 seconds. Calculate the traffic off

Describe language processing activities, Describe language processing activ...

Describe language processing activities? There are two different kinds of language processing activities: a. Program generation activities b. Program execution activities

Describe all elements of a state-chart diagram, a. Initial State: The first...

a. Initial State: The first or the default state the object is in. It is indicated by a solid circle. b. State: All the states an object can go in are mentioned in this. It is

Hardware cost-network properties, Hardware Cost It refers to the cost i...

Hardware Cost It refers to the cost involved in the execution of an interconnection network. It consists of the cost of switches, connectors, , arbiter unit, interface logic an

What is double data rate sdram, What is double data rate SDRAM?  Double...

What is double data rate SDRAM?  Double data rates SDRAM are those which can transfer data on both edges of the clock and their bandwidth is fundamentally doubled for long burs

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