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

The field sy-stepl, The field SY-STEPL refers to The index of the scre...

The field SY-STEPL refers to The index of the screen table row that is presently being processed.  The system variable SY-stepl only has a meaning within the confines of LOOP.

What is data movement, Data movement instructions shift data from one locat...

Data movement instructions shift data from one location to another. The source and destination locations are verified by the addressing modes, and can be registers or memory. Many

Gather some ram data after system was powered off, (a) When a forensic exa...

(a) When a forensic examiner arrives at a crime scene, the first task done is referred to as "Incident Response". Summarize the different incident response tasks done in 10 steps.

Determine the term - artisan software and bridgepoint, Determine the term ...

Determine the term - ARTiSAN Software and  BridgePoint ARTiSAN Software : This provides a variety of UML based CASE tools, which also includes a real time modeling tool.

Explain about the term e-cash, Explain about the term E-Cash. E-cash is...

Explain about the term E-Cash. E-cash is cash demonstrated by two models. E-cash has one is on-line form of e-cash, that is introduced by DigiCash that permits for the completi

.., 1mechanism of artificial satellite

1mechanism of artificial satellite

What is the difference between proc. sent by val and by ref, What is the di...

What is the difference between proc. sent BY VAL and By Ref? BY VAL: Alters will not be reflected back to the variable. By REF: Alters will be reflected back to that variab

State the importance of CRT monitor, State the importance of CRT monitor ...

State the importance of CRT monitor CRT is considered to be one of the most important component because the quality of displayed image influences the perception of generated de

Draw logic circuit using 2-input NAND gates, A combinational circuit has 3 ...

A combinational circuit has 3 inputs A, B, C and output F.  F is true for following input combinations A is False, B is True A is False, C is True A, B, C

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