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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. Design an OR to AND gates combinational network for the following Boolean expression: ABCD + A'BC'D + A'BC'D' + A'BCD + (A'B'C'D' + AB'CD) Two terms in parenthesis are Don
Define user space? The system space is divided from virtual address space in which the user application programs reside. The letter space is known as user space.
Define the term- Verification It is a way of preventing errors when data is copied from one medium to another (for instance from paper to disk/CD or from memory to DVD, etc.).
VuGen have two options to help debug Vuser scripts-the Run Step by Step command and breakpoints. The Debug settings in the Options dialog box permit us to verify the extent of the
Information Technology is nothing but the study, design, development, execution, support and management of computer based information systems mainly the applications software & har
Give the details of excess 3 codes and gray code using four binary digits. Ans: Table of excess 3 codes and gray code using four binary digits Binary
What are the different types of distributing frames used in exchanges? The various distribution frames used in exchange are demonstrated in figure. Every subscriber in a telep
In what way the protection fault handler concludes? After finishing the implementation of the fault handler, it sets the change and protection bits and clears the copy on write
Q. Explain Status and Control Registers? For control of numerous operations several registers are used. These registers can't be used in data manipulation though content of som
What is the state of the register in Figure after every clock pulse if it begins in the 101001111000 state?
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