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Microprocessor

Microprocessor
The minimum number of transistors required to implement a two input AND gate is

2
6
4
8

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Microprocessor
8085 microprocessor has how many pins

  40.
 39.
  30.
 41.

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 640ns
 1280ns
 320ns
 960ns

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Microprocessor
While CMP B instruction executes,

 all flags will be affected.
 no flags will be affected.
 only carry flag will be affected.
 only carry and zero flags will be affected.

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Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 XTHL & DAD H
 XCHG & DAD B
 XCHG & DAD H
 PCHL & DAD D

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Microprocessor
Which of the following is a valid integer constant?

127
127
127
125 + 3

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