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In a memory hierarchy system, data and programs are first stored in secondary or auxiliary memory. Program and its related data are brought in main memory for execution. What if the size of Memory needed for Program is more than the size of memory? Virtual memory is a idea used in some large computer systems which allow user to construct programs as though a large memory space were available, equal to total of secondary memory. Every address produced by CPU goes through an address mapping from so-called virtual address to a physical address in main memory. Virtual memory is employed to give programmers the illusion that they have a very large memory at their disposal although computer in fact has a relatively small main memory. A Virtual memory system offers a mechanism for translating program-generated addresses in correct main memory locations. This is done dynamically whereas programs are being executed in CPU. The translation or mapping is handled automatically by hardware through a mapping table.
Prove the following identities a. A ‾B ‾C‾ + A ‾BC ‾ + AB ‾C ‾ + ABC ‾ = C ‾ b. AB + ABC + A ‾ B + AB ‾C = B + AC Ans. a. LHS = A'B'C' + A'BC' + AB'C' + ABC' =
Q. Program for encoding ASCII Alpha numeric? ; A program for encoding ASCII Alpha numeric. ; ALGORITHM: ; create the code table ; read an input
What is a Diagonalization language LD? The diagonalization language having of all strings w such that the TM whose code is w does not accept when w is given as in
Using ARQ, a sending modem must wait for a return ACK for each sent block before sending the next block. (A) discrete (B)
Q. Explain about Cathode Ray Tubes? Cathode ray tube is the major technology on that televisions and monitors have been based. CRT is a partially evacuated glass tube which is
Version Control is a critical tool in development and production environments that allows a user to make snapshots of working con?gurations or code. In this assignment, you will de
Define parity bit and List its types. The most common error detection code used is the parity bit. Parity bit is a extra bit contained with a binary message to make the total n
Static memories Circuits capable of receiving their state as long as power is applied volatile Static RAM(SRAM)
third partial product of 13*11 in binary
Define Overflow. An overflow is a problem in digital computer due to the width of registers is finite. A result that contains n+ 1 bit cannot be accommodated in a register wit
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