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What is DRAM? What do you understand by DRAM refreshing? With the help of a block diagram, demonstrate how DRAM can be interfaced to a microprocessor.
Dynamic RAM (DRAM) is basically the same as SRAM, except that it retains data for only 2 or 4 ms on an internal capacitor. After 2 or 4 ms, contents of the DRAM should be completely rewritten (refreshed) as the capacitors, which store logic 1 or logic 0, lose their charges. Entire content of the memory is refreshed with 256 reads in a 2-to-4 ms interval. Refreshing also takes place during a write, a read or during a special refresh cycle.
Q. What is Base Register Addressing ? An addressing technique in which content of an instruction specifies base register is added to address field or displacement field of the
what is waterfall model
The address bus is unidirectional due to the address information is always given by the Micro Processor to address a memory location of an input or output devices.
#example of cascading rollback#
justify whether the control signal passes through same bus as data ,address and instruction or not?
In a subscriber loop that contains a series resistance of 300 ohms to protect the batteries in the exchange, a normalized telephone draws 10 mA and its standard input d.c. resistan
Logic-based Expert Systems - Artificial intelligence: Expert systems are agents which are programmed to make decisions about real world situations. They are put together by uti
Fundamental functional units of a computer: QUE. What are the fundamental functional units of a computer? Ans: A computer consists of 5 functionally independent major parts
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What is fan-out? Estimate the average count of every "many" association encountered with the path. Multiply the individual fan-outs who obtain the fan-out of the whole path, wh
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