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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.
Question 1 Explain the term telecommunication and how its implied meaning has changed over time and outline major developments in telecommunication technologies Question 2
What is the use of 8251 chip? 8251 chip is mostly used as the asynchronous serial interface among the processor and the external equipment.
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introduction for on ac circuits
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State the postulates of Bohr''s atomic model. Write any three merits and demerits.
how can we increase insulation resistance of sheet
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