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Microprocessor

Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 6.
 2.
 3.
 4.

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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, 5
 1, 2, 5
 1, 3, 4
 2, 3, 5

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Microprocessor
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

The same as
Cannot be determined
Greater than
Less than

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Microprocessor
After RESET 8255 will be in

 mode 2
 mode 0; all ports are output
 mode 0; all ports are input
 unchanged condition

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Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O
 None
 8085 has 5 interrupts lines, whereas 6800 has only two
 8085 has multiplexed bus, whereas 6800 does not have

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Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 68000
 8085
 Z-80
 6502

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