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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.
What is the maximum number of fragments that can result from a single IP Datagram? Explain. To fragment a datagram for transmission across a network, a router utilizes the netw
Explain about the network level in detail. Network Level Firewall/Packet Filters: At the Network level firewalls operate upon the mechanism of filtering individual IP pa
Illustrate 16-bit ISA? Compare it with 8-bit ISA bus. The only difference between 8 and 16-bit ISA bus is that an extra connector is attached behind the 8-bit connector. 16-b
What are the characteristics of DRAM? Low cost High density Refresh circuitry is needed
Write a short note on pointer operators in c Pointers (that is, pointer values) are generated with the ''address-of'' operator &, which we can also think of as the ''pointer-to
What is the significance Timescale directive? Defines time units and simulation precision (smallest increment). Syntax 'timescale TimeUnit / PrecisionUnit TimeUnit =
Explain about the value chain for a manufactured product. The products sold in shops and purchased for use within organizations are the result of a complicated web of relations
Explain briefly the generic framework for e-commerce. Generic framework of e-commerce contains the Applications of EC (like as banking, shopping in online stores and malls,
Hyper-threading works by duplicating those parts of processor which store architectural state but not duplicating main execution resources. This permits a Hyper-threading equipped
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