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Microprocessor

Microprocessor
The number of output pins in 8085 microprocessors are

 21.
 27.
 40.
 19.

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Microprocessor
After RESET 8255 will be in

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

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Microprocessor
IC 7485 cannot be cascadeD.

True
False

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 its internal registers
 the program counter
 the stack pointer
 the sequence in which memory contents are fetched by it

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 5
 4
 3
 6

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Microprocessor
When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are

 always set
 always reset
 affected indicating specific conditions
 not affected

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