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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.
What is the session. Session is a collection of various groups of method. Every session is assigned to a single control terminal. This terminal is either a pseudo-device. or a
State about Dynamic modelling and its inputs Dynamic modelling is elaborated further by adding concept of time: new attributes are computed, as a function of the attribute chan
example of branching take place in instructon pipeline
Q. Efficiency - Metrics for performance evaluation? The other significant metric employed for performance measurement is efficiency of parallel computer system it implies that
The Concept of Parallel Execution and Concurrent Real world systems are obviously concurrent, and computer science is about modelling the actual world. Examples of actual worl
What are conditions under which a deadlock situation may arise? A deadlock situation can arise if the following four conditions hold concurrently in a system: a. Mutual exc
Write a recursive algorithm to delete the leaves of a binary tree. Programming Requirements You must use the binary search tree code provided. Each algorithm must be impleme
Q. Write short note on Interfacing Keyboard, giving block diagram. Why do we need to introduce circuitry called Keyboard Status Word Generator?
expplain in detail the internal organisation of computer?
What is store program control (SPC)? Within stored program control systems, a program or set of instructions for the computer that is stored in its memory and the instructions
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