Microprocessor
Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?

 (I), (II) & (III)
 (II) & (III)
 (I) only
 (II) only

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Microprocessor
Assertion(A): The frequency of 8085 system is ½ of the crystal frequency. Reason(R): Microprocessor (8085) requires a two phase clock.

 Both A & R are true and R is the correct explanation of A
 A is true but R is false
 Both A & R are true but R is not the correct explanation of A
 A is false but R is true

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Microprocessor
In 8085 microprocessor system with memory mapped I/O, which of the following is true?

 Arithmetic and logic operations can be directly performed with the I/O data
 Devices are accessed using IN and OUT instructions
 There can be maximum of 256 input devices and 256 output devices
 Devices have 8-bit address line

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