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Microprocessor

Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 1280ns
 640ns
 320ns
 960ns

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Microprocessor
S0 and S1 pins are used for

 indicating the processor’s status
None of these
 acknowledging the interrupt
 serial communication

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Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

Either A or B depending on the actual number
A larger floating point number
A negative floating point number
A smaller floating point number

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Microprocessor
Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.

NIBBLE
BYTE
DOUBLEWORD (32 bits)
WORD (16 bits)

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

Processor is capable of waiting
External buffer is used
Either A or B
Neither A nor B

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 DI
 RIM
 SIM
 EI

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