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

Two independent mechanisms for controlling interrupt request, What are the ...

What are the two independent mechanisms for controlling interrupt request? At the device end, an interrupt enable bit in a control register verifies whether the device is permi

What is indirect addressing mode explain, Q. What is Indirect Addressing Mo...

Q. What is Indirect Addressing Mode explain? Indirect Addressing Mode In the indirect addressing modes operands employ registers to point to locations in memory. So it is

Visual perception problems, In AI the process of perception is studied ...

In AI the process of perception is studied as a set operations. A visual scene may be encoded by sensors and represented as matrix of intensity values. These are processed b

Spirit duplicating of information, Spirit Duplicating Equipment Requir...

Spirit Duplicating Equipment Required Spirit Duplicator (also known as hectograph) Thermal copier (optional) Materials Masters Hectographic carbon COPY pa

Phython, super ascii string checker

super ascii string checker

Determine the framed data including a parity bit, Determine the Framed data...

Determine the Framed data including a parity bit   For illustration when even parity is chosen, parity bit is transmitted with a value of 0 if the number of preceding

Define dynamic loading, Define dynamic loading. To get better memory-sp...

Define dynamic loading. To get better memory-space utilization dynamic loading is used. With dynamic loading, a routine is not loaded unless it is called. All routines are kept

Complexity of sequential search, Specified the average case complexity of s...

Specified the average case complexity of sequential search in an array of unsorted elements of size n if the following conditions hold: a)  Probability of the key to be in the a

What is a decoder, What is a Decoder ? Ans. Decoder: - This dec...

What is a Decoder ? Ans. Decoder: - This decodes the information. The decoders contain n inputs 7 at the end maximum 2 n outputs since n bit no can decode max 2n infor

Scope of supply chain management consultancy, What are included in scope of...

What are included in scope of Supply Chain Management Consultancy? Supply Chain Management Consultancy's scope is extensive, and classically includes as given here: a. Sales

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