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

How are standard query operators implemented in linq, Standard Query Operat...

Standard Query Operators are executed as extension methods in .NET Framework. These Standard Query Operators can be used to work with any collection of objects that executes the IE

Show the memory hierarchy of computer system, Q. Show the Memory Hierarchy ...

Q. Show the Memory Hierarchy of computer system ? Memory in a computer system is essential for storage and subsequent retrieval of instructions and data. A computer system uses

Calculations for a standard vga graphics screen, Q. Calculations for a stan...

Q. Calculations for a standard VGA graphics screen? Let's do the calculations for a standard VGA graphics screen (640×480) using 16 colours. Total number of Pixels = 640 ×48

Duplicating processes, DUPLICATING PROCESSES : As we mentioned earlier dup...

DUPLICATING PROCESSES : As we mentioned earlier duplicating is a process whereby a master copy is prepared from which a large number of other copies are obtained with the help of

What is hit and hit rate , What is hit? A successful access to data in ...

What is hit? A successful access to data in cache memory is known as hit. Normal 0 false false false EN-IN X-NONE X-NONE

What can digital circuits do?, Circuits can be designed to implement a spec...

Circuits can be designed to implement a specifictaske.g. a simple circuit could compare two inputvoltages and give a high output if they matched anda low output if they did not mat

Explain the term thread scheduling, Problem: a) Most RMI and RPC system...

Problem: a) Most RMI and RPC systems expect to be supported by the "Request-Reply Protocol". Describe what "Request-Reply Protocol" is. b) Describe the invocation semantics

What is pli, What is PLI Programming  Language  Interface  (PLI)  of  V...

What is PLI Programming  Language  Interface  (PLI)  of  Verilog  HDL  is  a  mechanism  to  interface  Verilog programs  with  programs  written  in  C  language.  It also pro

Dhcp, how to set up dhcp

how to set up dhcp

Timing in mpi program, Q. Timing in MPI program? MPI_Wtime ( ) returns ...

Q. Timing in MPI program? MPI_Wtime ( ) returns lapsed wall clock time in seconds because some random point in past. Elapsed time for program section is given by difference bet

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