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Microprocessor

Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 0FFE H and 0FFF H
 1000 H and 1001 H
 0FFF H and 0FFE H
 1000 H and 0FFF H

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Machine cycle
 Instruction cycle
 Memory cycle
 Clock cycle

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 6
 10
 4
 8

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Microprocessor
The stack pointer

 resides in microprocessor
 resides in RAM
 may be in RAM or ROM
 resides in ROM

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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 4
 2, 3 and 4
 1, 2 and 3

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