Microprocessor
In microprocessor based system I/O ports are used to interface

 the O/P devices only
 the I/P device only
 all the I/O devices
 the I/O devices and memory chips

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Microprocessor
The interrupt facility is provided in microprocessor to

 keep a control on the working of the microprocessor
 stop the microprocessor when desired
 stop the microprocessor when it starts malfunctioning
 change the sequence of the instructions being executed

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Microprocessor
Which one of the following is not correct?

 Bus is a group of wires
 An interrupt signal is required at the start of every program
 Bootstrap is a technique or device for loading first instruction
 An instruction is a set of bits that defines a computer operation

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