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Microprocessor

Microprocessor
A 37 bit mantissa has an accuracy of

11 decimal places
10 decimal places
6 decimal places
8 decimal places

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Microprocessor
A microprocessor without the interrupt facility

 cannot be used for DMA operation
 cannot be interfaced with any I/O devices
 is not useful for process control system
 is best suited for process control system

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 irrelevant
 all bits reset (i.e. 00H)
 all bits set (i.e. FFH)
 same as the content of A7-A0

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Microprocessor
Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor?

 (I) only
 (I) & (II)
 (II) & (III)
 (I) ,(III) & (IV)

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Microprocessor
What are the sets of commands in a program which are not translated into machine instructions during assembly process, called?

 Directives
 Operands
 Identifiers
 Mnemonics

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Microprocessor
Identify the non-maskable interrupt from the following

 RST 7.5
 RST 6.5
 RST 5.5
 RST 4.5

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