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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.
One battery having of four cells, connected in series. Emf of each cell is 1.45V and internal resistance of 0.04Ω. if a load resistance of 5Ω is connected to the battery, draw the
Q. Illustrate the principles of operation of centralized SPC and distributed SPC and compare their performance. Ans: In centralized control, all control equipment is replac
A relay is essentially an electromechanical switch that opens and closes electrical contacts. A simplified relay is represented in Figure. It is required to keep the fenomagnetic p
Explain cache structure in Pentium. Cache structure in Pentium: The cache in the Pentium has been changed by the one determined in the 80486 microprocessor. The Pentium has t
An arrangement of Windows so every window is neatly stacked with only the title bar of every window is showing.
Q. Illustrate Nodal-Voltage Method ? A set of node-voltage variables that implicitly satisfy the KVL equations is selected in order to formulate circuit equations in this nodal
Q. Show NPN Common Base Amplifier? This configuration is used for high frequency applications because the base separates the input and output, minimizing oscillations at h
Q. The full-wave rectified waveform, approximated by the first three terms of its Fourier series, is given by v (ωt) = V m sin (ωt/2), for 0 ≤ ωt ≤ 2π, and where V m = 100
time period measurement
High-pass T filters: Three-element filters can comprise a 'T' or 'π' topology and in either geometries, a low-pass, band-pass, high-pass, or band-stop characteristic is feasib
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