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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. Aconical horn has a side viewas shown in Figure The maximum value ofthe directive gain is given by GD ∼ = 5.13(D/λ) 2 , where D =√3.33λL1 and L1 = L/(1-d/D),in which d is the i
The reversibility principle of electrical machines states that an electrical machine can be used to operate either as a motor, converting electrical to mechanical energy, or as a g
Advantages of High level Languages a.It is easy to learn write and debug the program written in high level languages. b.Programs are more legible as compared to m
A circular ring of magnetic material has a mean length of 1m and a cross sectional area of .001m^2.A sawcut of 5mm width is made in the ring . calculate the magnetizing current req
3) The impedance for a 120 km, 230-kV line is given as j 0.9 ohm/km and j 0.6 ohm/km for self and mutual terms respectively; resistance is neglected. The mho characteristic for the
Question 1 (a) Describe the functions of the modulator and source encoder in a digital communications system. (b) By using appropriate examples, distinguish between th
I have a project due tomorrow, i have exhuasted all my resources, and cannot understand how to do the project, it is VHDL coding in Quartus program, i can send the assignment if yo
Q. What do you mean by Nibble? The nibble is a collection of bits on a 4-bit boundary. It would not be a particularly interesting data structure except for two items BCD (binar
Explain the construction of a MOSFET. Draw the symbols and diagrams of both P-channel and N-channel MOSFET. As JFET and MOSFET also have source, drain and gate. Its gate is ins
Carrier Concentrations For the calculation of semiconductor electrical properties and analyzing device behavior, it is necessary to know the number of charge carrier
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