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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.
Discuss about Charles Babbagein brief Mechanism for advancing or reversing of control card were allowed therefore enabling execution of any desired instruction. In ot
? Nodes: A node shows any hardware component. The configuration of hardware is shown by attributes of nodes. ? Components: A component shows software. Every component straight
What is page frame? An area in the main memory that can hold single page is called as page frame.
Tell me which queue having present queue depth should be greater than zero? Ans) Event queues Open MQ Explorer by selecting Start > Programs > IBM WebSphere MQ > WebSphere
Consider the following page reference and reference time strings for a program: Page reference string: 5,4,3,2,1,4,3,5,4,3,2,1,5,..... Show how pages will be allocated using t
Explain the process of inter-register signalling. Registers are utilized in common control exchanges to store and analyze routing data. They are given on a common basis is a
Q. Illustrate Cache DRAM? Cache DRAM (CDRAM) which is developed by Mitsubishi integrates a tiny SRAM cache (16Kb) on a generic DRAM chip. SRAM on the CDRAM can be used in two
tCAS is the number of clock cycles required to access a particular column of data in SDRAM. CAS latency is the column address strobe time, sometimes referred to as tCL.
Define locality of reference? What are its types? During the course of implementation of a program memory references by the processor for both the instruction and the data ten
Determine the primary memory of the server The keys used for accessing the server are held at a secret location in the primary memory of the server. This area or location is hi
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