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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.
Define bidirectional bus? A bidirectional bus is that which permits the transfer of data either from memory to CPU during a read operation or from CPU to memory during write op
Which of the fastest logic: TTL, ECL, CMOS and LSI ? Ans. The fastest logic family of all logic families ECL. High speeds are possible in ECL since the transistors a
Error detecting method that can detect more errors without increasing additional information in each packet is? Error detecting method which can detect more errors without rais
Model: It is a entire explanation of something (i.e. system). Meta model: It shows the model elements, syntax and semantics of the notation that permits their manipulatio
Q. What are the main functions of sound cards? Sound card (The card is frequently directly built into motherboards these days) is a board that has digital to analog sound conve
Put an "X" next to any of the following that are RISC CPU characteristics that show diffrence between RISC from CISC a) has limited addressing modes b) used in Motorola 6000 pro
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What is dynamic random access memory Computer memory today comprises mainly of dynamic random access memory (DRAM) chips which have been built into multi-chip modules that are
What are the event key words in interactive reporting? Event Keyword Event AT LINE-SELECTION Moment at which the u
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