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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.
Explain the Parallel In - Parallel Out Shift Registers? For "parallel in - parallel out" shift registers all data bits show on the parallel outputs immediately following the si
Q. Write a note on the application of emitter-follower? An emitter follower can serve as a buffer for a voltage source. The voltage divider at left is a poor voltage source bec
Hello may i know if it is possible for me to teach online on electrical maters?
In a CDMA system, the signal is spread over a large bandwidth by multiplying the transmitted symbol by a sequence of short pulses, also called chips. The
Q. Define Resistance Strain Gauge? Mechanical and civil engineers routinely employ the dependence of resistance on the physical dimensions of a conductor to measure strain. A s
What is Voltage Multiplying DACs? Multiplying DACs function on the principle of producing a weighted sum analog signal where the sum is proportional to the digital input signal
Meter Field Testing - Sealing Points The meter seal should be tamper proof. The consumer should be briefed about seals. The sealing of all metering systems should be completed
Q. Draw and explain a differential circuit A differentiator is a high pass RC circuit having a very small time constant. It is a circuit which gives an output voltage proportio
Q. Signals and spectral analysis? Figure shows the functional block diagram of a signal-processing system. The information source may be a speech (voice), an image (picture), o
Q. Why we need digital systems? EASIER TO PROCESS: For the reason that digitized information breaks all information into discrete units the information is easier to process and
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