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Microprocessor

Microprocessor
The clock speed of 8085 is

 1KHz.
 3.2MHz.
 3.2KHz.
 1MHz.

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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 used for DMA operation
 cannot be interfaced with any I/O devices

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Microprocessor
In 8085 which addressing mode is also called inherent addressing?

Immediate
Register
Direct
Implicit

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Microprocessor
Identify the programmable DMA controller from the following

 8251
 8279
 8257
 8253

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Microprocessor
A mask programmed ROM is

 erasable and programmable
 erasable electrically
 programmed at the time of fabrication
 programmed by the user

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Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

 CLR A
 SUB A
 MOV A, 00H
 ORA A

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