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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.
what is use of dummy coil in DC m/c????
pls give me the schematic of it
Obtain v(t) in the circuit of Figure by using the Laplace transform method.
Hexadecimal is of use in IT because (1) It is a compact system (e.g. only 3 digits represent the number 986) (2) As 16 are a power of 2 it turns out to be quite easy to conv
Q. A single-phase, two-winding, 10-kVA, 440:110- V, 60-Hz transformer is to be connected as an autotransformer to supply a load at 550 V from a 440-V supply. Draw a schematic diagr
Q. What is Segment displays? Seven-segment displays are the most commonly used numeric display devices, while 10- and 16-segment (starburst) display devices are also available.
Differentiate between dual beam and dual trace oscilloscope
Illustrate the construction and working of:- (i) Pressure Thermometer (ii) Selective Radiation Pyrometer (iii) Thermistor (iv) Laws of Thermocouple
The five addressing modes are given below: Immediate, Register, Direct, Implied addressing modes Register indirect,
What is the properties and application of iron?
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