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Q. Explain Read-only memory?
ROM is nonvolatile (because it maintains its contents even when its power is shut off) and is used to store data and programs that do not change during the operation of the system. The mask-programmed ROMs are read-only devices that are programmed for data storage during the manufacturing of the chip itself. These are generally less expensive devices for mass production. Character-font memory for laser printers is a good example. Programmable read-only memory (PROM) is a field-programmable memory that is fabricated by the manufacturer containing all 0s and is programmed irreversibly by the user by electrically changing appropriate 0s to 1s. PROMs are quite economical in small quantities. Erasable programmable read-only memory (EPROM) is nonvolatile and widely used in microprocessor systems for program storage. It can be erased by shining an ultraviolet light and reprogrammed if necessary. These are produced in lowtomoderate volumes.
Q. The equations for a two-port network are given by V 1 = z 11 I 1 + z 12 I 2 0 = z 21 I 1 + (z 22 + Z L )I 2 V 2 = - I 2 Z L (a) Satisfying the equations, dev
How DRAM's are different from SRAM's? Why DRAMs are said to use address multiplexing? Ans Dynamic RAM (DRAM) is basically the same as SRAM except that it recollects data f
Effect of Frequency a.From equation for given H p and μ P v α √f b.From equation the depth of penetration for a given material δ α 1/ √f c.From equation hyst
Check Sheets - Quality Tools for Improvement This might be an easy listing of items that could represent information in an efficient, graphical format. If the system under ana
Determine the Service and Backwash Rates The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rat
Each of the following functions is abs(H(jw))^2 of a certain network function H(s). Obtain all the possible H(s) for each given abs(H(jw))^2. [(w^4)+25]/[(w^4)+(12w^2)+49]
Explain the Parallel In - Parallel Out Shift Registers? For "parallel in - parallel out" shift registers all data bits show on the parallel outputs immediately following the si
function of a commutator in a DC motor
Q. Explain the application of clippers. There are numerous clipper applications. In general clippers are used to perform one of the following two functions: · Changing the s
Total Debt to Total Assets ratio A metric used to measure a company's financial risk by determining how much of the company's assets have been financed by debt. It is calculat
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