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Microprocessor

Microprocessor
In one’s complement 8 bit representation 11111111 represents

1
-0
-1
+0

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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
 2, 3 and 4
 1, 2 and 3
 1, 2 and 4

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Microprocessor
The number of status flags present in 8085 microprocessor are

 5
 16
 8
 10

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Microprocessor
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.

True
False

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 247
 244
 245
 246

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Microprocessor
Pick out the matching pair

 SID; SIM
 HOLD; DMA
 S0;S1;wait status
 READY; RIM

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