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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.
Before 1994 there were dissimilar methodologies like Rumbaugh, Booch, Jacobson, and Meyer etc who followed their own notations to mould the systems. The developers were in a di
Q. What is the impact of overflow for binary numbers? An overflow is said to have happened when sum of two n digits number takes n+ 1 digits. This definition is perfectly appli
In order to calculate the performance of the program, the normal form of analysis of the program is to simply measure the total amount of CPU time needed to implement the various p
Q. Versions of small computer systems interface? SCSI-1 calls for a cable with 8 data wires plus one for parity. SCSI-2 allows use of multiple cables to support 16- or
How many types of assemblies are there? Private, Public/Shared, Satellite. A private assembly is normally used by a one application, and is stored in the application's director
What is normal form? A normal form is a guideline for relational database tables that enhances data consistency. As tables satisfy higher levels of normal forms, they are less
Explain new services of CPU Based Exchange. These new services are termed as supplementary services and several of the prominent ones are given below as: Category 1:
State about the Object models Object models are used for explaining the objects in the system and their connection with each other in the system. The dynamic model explains in
Representation scheme in artificial intelligence: It is not hard to see why logic has been popular representation scheme in AI: In this way, It is easy to represent knowl
The bandwidth requirement of a telephone channel is (A) 3 KHz (B) 15 KHz (C) 5 KHz (D) 25 KH
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