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Microprocessor

Microprocessor
The number of output pins in 8085 microprocessors are

 27.
 19.
 40.
 21.

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Microprocessor
A real number consists of

None of these
Integer part, fraction part along with positive or negative sign
Integer part and fraction part
Integer part

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 1, 3 and 4
 1, 2 and 3
 2, 3 and 4
 1, 2 and 4

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 To disable data bus
 Enable the data bus to be used as low order address bus
 To achieve all the functions listed above
 To latch data D0-D7 from data bus

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

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

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 8085
 68000
 Z-80
 6502

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