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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.
Categorize the CPU scheduling algorithms? The various CPU scheduling algorithms are categorized as given below:
Which method uses the greatest number of layers in the OSI model? Gateway utilizes the greatest number of layers into the OSI model.
What are the differences between SIMULATION and SYNTHESIS Simulation synthesis Simulation is used to verify functionality of the circuit.. a) Functional Simulation:stud
Q. Why we need number systems? Number system is used to signify information in quantitative form. Some of the general number systems are octal, decimal, hexadecimal and binary.
What is data hazard in pipelining? What are the solutions? A data hazard is a situation in which the pipeline is stalled due to the data to be operated on are delayed for some
What are the two independent mechanisms for controlling interrupt request? At the device end, an interrupt enable bit in a control register verifies whether the device is permi
Explain about CSMA/CD It is an access method used mainly with LANs configured in a bus topology. With CSMA/CD, any station (node) can transmit a message to any other statio
What are the two primary models of Supply Chain Management? The Two Primary models of Supply Chain Management are:- 1. Porter's Value Chain Model 2. Supply Chain Model
What is the advantage of using interrupt initiated data transfer over transfer under program control without interrupt? In the interrupt initiated data transfer, the processor
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