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Microprocessor

Microprocessor
DMA is used between

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

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Microprocessor
What is SIM?

 None of these.
 Select interrupt mask.
 Sorting interrupt mask.
  Set interrupt mask.

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Microprocessor
The ROM programmed during manufacturing process itself is called

 EPROM
 EEPROM
 PROM
 MROM

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ORI 0FH
 ANI 0FH
 XRI 0FH

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Microprocessor
S0 and S1 pins are used for

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

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Microprocessor
Which one of the following statement is false?

 A microprocessor has an ALU
 A microprocessor has unidirectional address bus
 A microprocessor has bi-directional data bus
 A microprocessor has bi-directional address bus

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