What is shadow ram, Computer Engineering

Assignment Help:

Shadow RAM is a copy of Basic Input/Output Operating System (BIOS) routines from read-only memory (ROM) into a particular area of random access memory (RAM) so that they can be accessed more rapidly. Access in shadow RAM is typically in the 60-100 nanosecond range while ROM access is in the 125-250 ns range. In some operating systems like DOS, certain BIOS routines are not only used during the boot or start-up of the system, but also during normal operation, particularly to drive the video display terminal. In Windows and OS/2, thus, these routines are not used and the use of shadow RAM is not essential. In some systems, the user can turn the use of shadow RAM off or on.       

 

 


Related Discussions:- What is shadow ram

What are near and far pointers, These days, they're pretty much obsolete; t...

These days, they're pretty much obsolete; they're definitely system-particular. They had to do with 16-bit programming under MS-DOS and perhaps some early on versions of Windows. I

What is the difference between dpi and ppi, Question : (a) "Resolution ...

Question : (a) "Resolution refers to the sharpness and clarity of an image" (i) Explain what you understand by the above statement. (ii) What is the difference between D

What is sap locking, What is SAP locking? It is a mechanism for describ...

What is SAP locking? It is a mechanism for describing and applying logical locks to database objects.

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

Collective communications - broadcast, Q. Collective Communications - Broad...

Q. Collective Communications - Broadcast? Broadcast: Broadcasting can be done in two ways one of them is one to all and another one is all to all. In the matter of one to all b

Explain asynchronous decade counter, Draw the circuit diagram of Asynchrono...

Draw the circuit diagram of Asynchronous decade counter and explain its working. Ans: To  design  a  circuit diagram of decade  asynchronous  counter  initially  we  dr

Explain the boolean equations for logic circuits, Explain The Boolean Equat...

Explain The Boolean Equations for Logic Circuits? A Boolean equation is the mathematical representation of a logic circuit using standard Boolean terms. All the logic gates (AND,

What is interaction modeling, What is interaction modeling? Interaction...

What is interaction modeling? Interaction model explains interactions within a system. The interaction model explains how objects interact to produce useful results. It is a ho

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