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Microprocessor

Microprocessor
DMA is used between

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

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Microprocessor
After RESET 8255 will be in

 unchanged condition
 mode 2
 mode 0; all ports are output
 mode 0; all ports are input

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Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 16
 12
 20
 8

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

 512
 256
 285
 65536

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Microprocessor
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

Arithmetic, relational, assignment
Relational, assignment, arithmetic
Assignment, relational, arithmetic
Arithmetic, assignment, relational

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

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

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