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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.
Design a circuit which computes the square of a number? This should not make use of any multiplier circuits. This should use Multiplexers and some other logic as: 1^2=0+1=1
Q. Explain what is Internal Modems ? Internal Modems: Internal Modems plug in expansion slots in your PC. Internal Modems are efficient andcheap. Internal Modems are bus-specif
Q. What is Pure semiconductors? Pure semiconductors, known as intrinsic semiconductors, have very few charge carriers and may hence be classified as almost insulators or very p
Explain overlay structured program ? A program having overlays is termed as overlay structured program, here an overlay is a part of program that has similar load origin as som
Define Radix (or)Base. A number system of base or radix is a system that uses different symbols for r digits. Numbers are shown by a string of digit symbols. To verify the quan
Question (a) Imagine you need to move people through a distance of 10 miles, with the following specifications. • Car: capacity = 5, speed = 60 miles/hour • Bus: capacity
What is a macro ? How it is defined ? Preprocessor' is a translation phase that is applied to source code before the compiler proper gets its hands on it. Generally, th
Pipelining - computer architecture: The Pipeline Defined According to John Hayes "A pipeline processor consists of a sequence of processing circuits, called stages or
Compare pre-emptive and non-preemptive scheduling policies. We preempt the currently executing process in preemptive scheduling. In non-preemptive we permit the current process
mine sweeper algorithm.
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