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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.
Engineering Applications A number of the engineering applications are: 1. Simulations of artificial ecosystems 2. Airflow circulation over aircraft components Airflow
A museum has a collection of old posters advertising events of various kinds (theatre, sport, fairs, lectures etc.). It wishes to keep a record of these, containing, for each poste
Handler's Classification In 1977, Wolfgang Handler proposed an detailed notation for expressing the parallelism and pipelining of computers. Handler's classification addresses
plz expalain interfacing of 8259 with 8085 step wise
Data can be changed from special code to temporal code by using ? Ans. By using Shift Registers data can be changed from special code to temporal code. A Register wherein data ge
Define Refresh Circuits? It is a circuit which make sure that the contents of a DRAM are maintained when every row of cells are accessed periodically.
Q. How codes represent data for scientific calculations? How codes are in fact used to represent data for scientific calculations? The computer is a discrete digital device
Explain the concept of Generalization Generalization and inheritance are powerful abstractions for sharing the structure and/or behaviour of more than one class. Generalizati
a. Write down the salient difference among conventional T.V. and High Definition TV (HDTV) and also highlight the various benefits of digital representation for video. b. Video
Error detection mechanism may include checking mechanical and data communication errors. These errors must be reported to processor. The illustrations of kind of mechanical errors
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