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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.
Q. What is Status Control and Registers? Status Control and Registers: These registers can't be used by programmers though are used to control CPU or execution of a program.
Speed in scientific computing is measured in megaflops, gigaflops, teraflops and petaflops. A megaflop is 10 6 floating point arithmetic operations (+, -, *, /) in one second What
All AWT event listeners expand the java.util.EventListener interface.
Q. Show the Noframes Tag? tag can be used for those browsers which aren't able to interpret tags. Even though most, if not all, of your visitors would
The NOR gate output will be low if the two inputs are ? Ans. Output is low if any of the input is high means input may be 01,10 or 11.
What are various types of Shift Registers ? Ans: Kinds of Shift Registers: (i) SISO that is Serial-In Serial-Out Shift Register (ii) SIPO that is Serial-In P
Propositional versions of resolution: Just because of so far we've only looked at propositional versions of resolution. However in first-order logic we require to also deal wi
How many 128 × 8 RAM chips are required to provide a memory capacity of 2048 bytes. Ans. Available here RAM chips = 128 x 8 Required the memory capacity = 2048 x 8 No. of chip
The MSI chip 7474 is ? Ans. MSI chip 7474 is TTL, dual edge triggered D Flip-Flop.
Is it possible to extract data from tables without using the event 'GET' in the report with an appropriate LDB. False. You can extract data from tables using Select stateme
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