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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.
Explain busy waiting semaphores. Weak, Busy-wait Semaphores: The simplest method to implement semaphores. Useful while critical sections last for a short time, or we
Disadvantages of wireless technology - Range can be very limited - Possible interference from nearby electronic devices - Security issues (i.e. tapping illegally into
Slope Deflection Equations for a Member: In this section, we will develop a few general equations needed for further discussion in the moment distribution context. Fig
DLQ - Dead Letter Queue If an application tries to put a message to one more application and if it is not delivered then it goes to the DLQ. So DLQ is not anything but all und
SPC stands (A) Standard Protocol Control (B) Stored Program Control (C) Signaling and switching Centre (D) Signaling Process Center Ans: SPC repres
Authorization Bypass is a frighteningly easy process which can be employed with poorly designed applications or content management frameworks. You know how it is... you run a small
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
Types Of Classification The following classification of parallel computers have been recognized: 1) Categorization based on the data streams and instruction 2)
Question: a) Write a short note on each of the terminologies below pertaining to multimedia: i) Developers. ii) Users. iii) Authoring Tools. iv) Product. b) Software d
Hi I study master of computer science I have assignment for subject statical natural language processing . I need solved due date on 6 May2014 at 11 pm Australia time I need yo
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