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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.
Task 1: Methodologies are 'regarded as a recommended series of steps and procedures to be followed in the course of developing an information system' and were introduced to im
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Define EMS The area at location C8000H-DFFFFFH is often free oropen. This area is used for the expanded memory system in a XT or PC system, or for the upper memory system in an
State the Example of begin end module sequential(); reg a; initial begin $monitor ("‰g a = ‰b", $time, a); #10 a = 0; #11 a = 1; #12 a = 0; #13 a = 1; #
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The term 'page traffic' describes? Ans. Page Traffic describes the movement of pages in and out of memory.
Micro-instructions are stored in control memory. Address register for control memory comprises the address of subsequent instruction which is to be read. Control memory Buffer Regi
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