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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.
Show how finite state machine model helps in designing a switching system and give a typical example. Switching system fundamentally belongs to the class of finite state machi
What is SCSI? Ans: It is the acronym for small computer system interface. It refers to a standard bus explained ANSI. Devices such as disks are linked to a computer via 50-wire
brief explanation on pulse train
What are the advantages of using XML over HTML? The root cause of the problem lies in HTML (Hyper Text Mark-up Language), the defacto standard for web publication. The main pr
Define Realization of one flip flop using other flip flops? It is probable to implement a flip flop circuit using any other circuit. Universal block diagram is shown below.
Define Multiprogramming. Multiprogramming: A multiprogramming operating system is system which allows extra than one active user program or part of user program to be store
What are the types of electronic payment system? Types of the electronic payment system are as given below: The most Internet payment way for Business to Customer is credit
Q. What is Compact Disk Recordable? To accommodate applications in which just one or a small number of copies of a set data is required write-once read-many CD called as CD Rec
Q. What are the elements of an instruction? As the function of instruction is to communicate to CPU what to do it needs a minimum set of communication such as: What op
What are the two ways of producing a list within a transaction? By submitting a separate report. By using leave to list-processing.
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