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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.
Factors of Contributing to Losses in Service Cables 1. Tapping of underground service cables: The service cables must be visible so that tapping of cables can be detected. U
Question: (a) An FSK Scheme is used in a wireless transmission with the data bits 1011010. With the help of a labeled diagram, describe in detail the final output of the MSK
Q. What are the different types of MOSFET transistors ? The metal-oxide semiconductor field-effect transistor (MOSFET) is a three-terminal active device which has many applicat
i am Eectrical engineer and i want to teach students on line mode. let me know the procedure. thanks pushpendra
Define some Applications of Digital Counters? Digital counters are extremely useful in many applications. They can be effortlessly found in digital clocks and parallel-to-seri
Q. A satellite radio transmitter has P in = 3 W and G t = 30 dB. The receiving antenna has a circular aperture with radius r at the ground station 30,000 km away. Find r in meter
Explain the Tap Changing Transformers? This is the most popular form of voltage control at all voltage levels. It is based on changing the turns ratio of the transformer, hence
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RAR Rotate Accumulator Right Through Carry Instruction This instruction rotates the contents of the accumulator towards right by one bit. The D 7 bit moves to D 6 posi
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