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What do you understand by DRAM and its refreshing?
Dynamic RAM (DRAM) is fundamentally the same as SRAM, but this retains data for only 2 or 4 ms on an internal capacitor. But after 2 or 4 ms, the contents of the DRAM should be fully rewritten (refreshed) since the capacitors that is store logic 1 or logic 0, lose their charges. The whole content of the memory is refreshed with 256 reads in a 2-to-4 ms interval. Also refreshing occurs throughout a write, a read or a particular refresh cycle.
Uses of Zener Diode Zener diodes are extensively used as voltage references and like shunt regulators to regulate the voltage across small circuits. While connected in parall
Define Serial In - Parallel Out Shift Registers? For this type of register data bits are entered serially in the same manner as discussed in the last section and the difference
HOW TO DESIGN
Q. Given the block diagram and the truth table of a demultiplexer, as shown in Figure, obtain its implementation.
Compare CALL and PUSH instructions CALL PUSH When CALL is implemented the microprocessor automatically stores the 16-bit address of the instruction next to CALL on the sta
Q. What are the different types of distributing frames used in exchanges? Ans: Different distribution frames used in exchange are displayed in figure. Each subscribe
Discuss the need of PCI bus. Peripheral Component Interconnect (PCI): It was developed by Intel and introduced in 1993 year. This is geared particularly to fifth- and sixth-
Questions: A magnetic core with a primary winding with 40 turns and a secondary winding with 80 turns has a leakage path dominated by an air gap as shown in the figure. The iro
Scale-space pyramids Write an m-file "scale_space.m" which computes scale space representation of an input image for a given scale "sigma" and displays them. (i) 4 scale
Define Combinations of logic gates? The Logic gates be able to combined to produce more complex functions. They can as well be combined to substitute one kind of gate for anoth
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