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Microprocessor

Microprocessor
A microcomputer consists of

All of these
 memory
 a microprocessor
 I/O device

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Microprocessor
Of the following circuits, the one which involves storage is

Decoder
Mux
RS Latch
Nand

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Microprocessor
The operating modes of 8255 A are called

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

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Microprocessor
During which T-state, contents of OP code from memory are loaded into IR (Instruction Register)?

 T1 OP code fetch
 T4 OP code fetch
 T3 OP code fetch
 T2 OP code fetch

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Microprocessor
Identify the non-programmable interfacing device from the following

 8255.
 8257.
 8212.
 8295.

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Microprocessor
Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor?

 1, 3, 4
 1, 3, 5
 1, 2, 5
 2, 3, 5

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