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Microprocessor

Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 8
 12
 18
 16

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 EI
 DI
 RIM
 SIM

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 00000001
 00000000
 11111111
 None

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Microprocessor
In 8086, _______ uses a mechanism known as an instruction stream queue to implement a pipeline architecture.

 Both ‘b’ and ‘c’
 None of these
 Execution Unit (EU)
 Bus Interface Unit (BIU)

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Microprocessor
During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction.

 Execution Unit (EU)
 Bus Interface Unit (BIU)
 None of these
 Both ‘c’ and ‘d’

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Microprocessor
In a microprocessor based system the stack is always in

 ROM
 microprocessor
 EPROM
 RAM

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