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

Inverse of exclusive or known as xnor gate, Truth table of NAND and NOR can...

Truth table of NAND and NOR can be made from NOT (A AND B) and NOT (A OR B) correspondingly. Exclusive OR (XOR) is a special gate whose output is one only if two inputs aren't equa

Explain briefly how firewalls protect network, Explain briefly how firewall...

Explain briefly how firewalls protect network.       A firewall is simply a program or hardware device that filters the information coming by the Internet connection into your

Define handshaking, Define Handshaking. Handshaking is a method commonl...

Define Handshaking. Handshaking is a method commonly used to accompany ever data item being transfer with the control signal that show the presence of data in the bus. The unit

Define the time required by sector to reach below read/write, is the time r...

is the time required by a sector to reach below read/write head. Latency Time is the time needed by a sector to reach below read/write head.

Main memory location, Poor Richard's cache as explained in Conference Topic...

Poor Richard's cache as explained in Conference Topic 2. Suppose that a 7th word (gggg gggg) from main memory location 011110 is read and stored in cache. a) Determine the cach

What is data structure, What is data structure? A data structure is a w...

What is data structure? A data structure is a way of organizing data that considers not only the items kept, but also their relationship to each other. Advance knowledge abo

Rules for minimisation using k maps, 1) All squares containing a 1 must be ...

1) All squares containing a 1 must be grouped. 2) The largest possible groups must be formed. 3) Groups can overlap if this allows larger groups to be formed. 4) Groups mu

Multiple valued logics, Multiple valued logics: Multiple valued logics...

Multiple valued logics: Multiple valued logics, where altered types of truth value such as "unknown" are may be allowed. These have some of the particular advantages of fuzzy

Describe the necessary conditions for deadlock, Describe the necessary cond...

Describe the necessary conditions for Deadlock. Required conditions for deadlock 1. Mutual exclusion 2. Hold and wait 3. No preemption 4. Circular wait Mutual e

Analysts in various functional areas, Q. Analysts in various functional are...

Q. Analysts in various functional areas? Today systems analyst's job presents a exciting and fascinating challenge. It provides high management visibility and opportunities for

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