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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.
Telex is a (A) Telephone Service between various subscribers (B) Tele printer Service between various subscribers (C) Television Service between various subscri
advantages and disadvantages of layered architecture in computer network.
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Multiple providers of libraries may use common global identifiers causing a name collision when an application tries to link with two or more such libraries. The namespace feature
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What are single stage and multistage networks? Compare the strengths and weaknesses of each. OR List the major difference in single stage, two stages and three stage Netw
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Rectifier output with fitters: When half-wave and full-wave rectification suffice to deliver a type of DC output, neither produces constant-voltage DC (direct current). To gen
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