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Microprocessor

Microprocessor
Which instruction is required to rotate the content of accumulator one bit right along with carry?

 RAL
 RAR
 RLC
 RRC

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Microprocessor
DMA is used between

 none
 microprocessor and I/O
 memory and I/O
 microprocessor and memory

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Microprocessor
What is used to access 16-bit data in 8086?

 Pipeline architecture.
None of these
 Memory Banking.
 Data Banking.

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Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 65536
 285
 512
 256

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Microprocessor
Identify the programmable interval timer from the following

 8252
 8253
 8279
 8275

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

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