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Microprocessor

Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 16
 4
 20
 5

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Microprocessor
The operating modes of 8255 A are called

Mode 0 and mode 1
Mode 0, mode 2 and mode 3
Mode 0 and mode 2
Mode 0, mode 1 and mode 2

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Microprocessor
The minimum number of transistors required to implement a two input AND gate is

4
6
8
2

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0024H.
 0048H.
 0060H.
 0030H.

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Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 TRAP
 RST 7
 RST 5.5
 INTR

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for the user
 direct memory access for microprocessor
None of these
 direct memory access for the I/O device

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