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Microprocessor

Microprocessor
It is possible to copy a file in the same directory.

False
True

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Microprocessor
IC 7485 cannot be cascadeD.

True
False

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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 reset
 not affected
 always set
 affected indicating specific conditions

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Microprocessor
Bus Interface Unit (BIU) in 8086 performs the following functions:

 Instruction fetch.
 All the above.
 Instruction decoding.
 Arithmatic and Logic operations.

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Microprocessor
Identify the communication interfacing device from the following

 8251
 8255
 8155
 8257

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Microprocessor
In 8085 microprocessor based system maximum possible number of input/output devices can be connected using I/O mapped I/O technique is

 64
 65536
 512
 256

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