What are overlays, Computer Engineering

Assignment Help:

What are overlays?

To enable a process to be larger than the amount of memory allocated to it, overlays are used. The idea of overlays is to keep in memory only those instructions and data that are needed at a given time. When other instructions are required, they are loaded into space occupied previously by instructions that are no longer required.

 


Related Discussions:- What are overlays

Explain the term- macro, Explain the term- macro? A term macro is a set...

Explain the term- macro? A term macro is a set of instructions, which can be executed repeatedly. It is useful for automating certain routine tasks like printing reports etc. T

Why did some plug-ins disappear for 0.99.19, Some of the plug-ins have prov...

Some of the plug-ins have proven unstable. These have been moved into a split download, which should be available anywhere you got the GIMP, in the file gimp-plugins-unstable-VERSI

Explain various fields in ipv6 base header, Explain various fields in IPV6 ...

Explain various fields in IPV6 base header? Although IPv6 base header is double as large as an IPv4 header, this contains less information. Given diagram demonstrates the forma

Difference between field-group header and other field groups, What is the d...

What is the difference between field-group header and other field groups? The header field group is a particular field group for the sort criteria.  The system automatically p

Discuss about simple mail transfer protocol briefly, Discuss about Simple M...

Discuss about Simple Mail Transfer Protocol briefly. SMTP: It is sands for Simple Mail Transfer Protocol, is a protocol for sending e-mail messages among servers. Most e-

Information technology or information system, Information Technology or Inf...

Information Technology or Information System Before going further we need to clarify what we mean by the term information system. It is easy to confuse terminology as many tex

What is page frame, What is page frame? An area in the main memory that...

What is page frame? An area in the main memory that can hold single page is called as page frame.

What is boyce codd normal form, A relation schema R is in BCNF with respect...

A relation schema R is in BCNF with respect to a set F of functional dependencies if for all functional dependencies in F+ of the form a->b, where a and b is a subset of R, at leas

One can use the event get in a report without ldb attribute, One can use th...

One can use the event GET in a report without LDB attribute. False. no one can use the event GET in a report without attribute.

Differentiate between unit testing and integration testing, Unit testing an...

Unit testing and integration testing: Unit testing focuses on the least element of software design by the module. Unit test is conducted on every of the modules to uncover er

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