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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. Dual-ramp analog to digital converter? Figure (a) shows the block diagram of a dual-ramp (dual-slope) A/D converter. After a start-of-conversion pulse, the counter is cleare
Q. Show the Amenability to computer processing? Due to the digital data collected and stored in the form of a matrix, the same becomes amenable to processing on computers. By f
What are the different types of write operations used in 8253? There are two types of write operations in 8253 (1) Writing a control word register (2) Writing a count val
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Need a phd expert in optical system and networking
DAD Double Add Instruction The contents of register R P are added to the contents of HL register pair and results of addition is stored in HL register pair. R P may b
Q. Briefly explain about Phasor Method? For sinusoidal excitations of the same frequency, the forced or steady-state responses are better found by the technique known as the ph
#I want to get lecture notes on Electronic device.and circuits .
Ask question (c) Reduce each of the given signal transmission situations to a source, coupling path(s), and receptor: (i) AM radio transmission to the human ear. (ii) TV transmis
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