51. In Intel 8085, what is the size of the Accumulator register?

1. 1. 8 bit

   
   
   

   2. 16 bit

   
   
   

   3. 32 bit

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   The size of the Accumulator register in 8085 is 8 bits.

   Correct Option: A

   The size of the Accumulator register in 8085 is 8 bits.

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52. "The number of transistors per integrated circuit would double every 18 months", this came to be known as—

1. 1. Mealacy's law

   
   
   

   2. IC technology

   
   
   

   3. Moore's law

   
   
   

   4. VLSI

   
   
   

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1. View Hint View Answer Discuss in Forum

   Moore's law

   Correct Option: C

   Moore's law

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53. How much is the size of a nibble?

1. 1. 1 bit

   
   
   

   2. 2 bits

   
   
   

   3. 3 bits

   
   
   

   4. 4 bits

   
   
   

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1. View Hint View Answer Discuss in Forum

   1 Nibble = 4 Bits

   Correct Option: D

   1 Nibble = 4 Bits

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54. In a flag register of 8085, where does the sign flag and parity flag set?
    

1. 1. D₇ and D₆

   
   
   

   2. D₆ and D₄

   
   
   

   3. D₇ and D₂

   
   
   

   4. D₇ and D₄

   
   
   

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1. View Hint View Answer Discuss in Forum

   D₇ and D₂

   Correct Option: C

   D₇ and D₂

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55. What is the opcode in the given instruction MVI H, L?

1. 1. MVI

   
   
   

   2. H

   
   
   

   3. L

   
   
   

   4. H, L

   
   
   

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1. View Hint View Answer Discuss in Forum

   MVI,
   ∴ It specifies what the task has to be performed.

   Correct Option: A

   MVI,
   ∴ It specifies what the task has to be performed.

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