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 is the difference among scrollbar and scrollpane, A Scrollbar is a Co...

A Scrollbar is a Component, but not a Container while Scrollpane is a Container and handles its own events and do its own scrolling.

Compare ss7 architecture with seven-layer osi architecture, Compare the arc...

Compare the architecture of SS7 with seven-layer OSI architecture The relationship among these levels and the layers of the OSI model is demonstrated in figure. The user part i

Why we need linker, Q. Why we need linker?  The linker: Joins as...

Q. Why we need linker?  The linker: Joins assembled module in one executable program, Produces an .EXE module and initializes with special instructions to facilitate

Web designing, how to start a web designing would you please guide me

how to start a web designing would you please guide me

Types of structure charts, Types of Structure Charts Transaction struc...

Types of Structure Charts Transaction structure - control module calls subordinate modules, each of which handles a certain transaction More afferent processes Le

What is the length of function code at user-command, What is the length of ...

What is the length of function code at user-command? Every menu function, push button, or function key has an associated function code of length FOUR (for example, FREE), which

System software, System Software System software is a group of progr...

System Software System software is a group of programs written to service another programs. Some system software (e.g., compilers editors and file management utilities) proc

In which page replacement policies balady’s anomaly occurs, In which page r...

In which page replacement policies Balady’s anomaly occurs? FIFO that is First in First Out.

8085 programs, what is the theory used to check whether a number is negativ...

what is the theory used to check whether a number is negative or positive?

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