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Microprocessor

Microprocessor
The number of interrupt lines in 8085 is

2
4
3
5

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

 5
 20
 16
 4

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Microprocessor
A microcomputer consists of

 memory
 a microprocessor
 I/O device
All of these

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 11111111
 00000000
 00000001
 None

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Microprocessor
The operating modes of 8255 A are called

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

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Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

2*m
2^m
m
log2 (m)

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