Shadow ram
Explain about shadow ram?
Expert
It is a copy of Basic Input/ Output Operating System (BIOS) routines from read-only memory in a special area of random access memory (RAM) so that they can be accessed more rapidly. Access in shadow RAM is normally 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 employed during boot or start up of the system, however also during normal operation, especially to drive video display terminal. In Windows & OS/2, though, these routines are not employed and the use of shadow RAM is not essential. In some systems, user can turn the use of shadow RAM off or on.
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Behavior Approximation: Abstractions are also described in term of the relative behavior of the abstract system versus the concrete system. A program’s “behavior” is defined as the set of possible execution paths, also called traces
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Describe Carter’s efforts at peace making.
Advantages of asynchronous architectures: Asynchronous architectures decouple senders & receivers. It brings about performance advantages for both the sender & the receiver. The sender is capable to even out his communication traffic over the
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