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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.
Q. Illustrate working of Pocket and PC-Card Modems? Pocket Modems: Small external Modems used with notebook PCs. PC-Card Modems: PC and Modems are read with PCMCIA slots w
Circuits can be designed to implement a specifictaske.g. a simple circuit could compare two inputvoltages and give a high output if they matched anda low output if they did not mat
A communication protocol is an agreement which specifies a common language two computers use to exchange messages. For instance, a protocol specifies exact format and meaning of ev
What are the Data types of the ABAP/4 layer? Possible ABAP/4 data types: C: Character. D: Date, format YYYYMMDD. F: Floating-point number in DOUBLE PRECISION (8 bytes)
8085 the interrupts are classified as Software and Hardware interrupts.
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An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be use
general computer animation functions
Name the four steps in pipelining. Fetch : Read the instruction from the memory. Decode : Decode the instruction and get the source operand. Execute : Perform the operat
Name some Popular Internet Browsers There are many internet browers are available on internet. Some Popular Internet Browsers are: Internet Explorer, Netscape Navigato
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