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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 3 bytes
 4 bytes
 1 bytes
 2 bytes

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 there is a pin available for serial input
 serial I/O is possible through SIM and RIM instruction
 there is a pin available for serial output
 serial I/O is not possible

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Microprocessor
The number of status flags present in 8085 microprocessor are

 8
 10
 5
 16

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Microprocessor
The clock speed of 8085 is

 3.2MHz.
 1KHz.
 3.2KHz.
 1MHz.

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Microprocessor
We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete

None of these
Set of {AND,OR,NOT}
Set of {EXOR, NOT}
Set of {AND,OR}

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

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

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