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Microprocessor

Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 246
 244
 245
 247

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It facilitates the user storing 16-bit data temporarily
 There are 16 address lines
 It counts 16-bits at a time
 It has to fetch two 8-bit data at a time

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 RST 7.5
 RST 5.5
 INTR
 TRAP

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Microprocessor
A microprocessor without the interrupt facility

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

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 13
 16
 10
 7

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Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 220
 220-1
 220 - 1
 20

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