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Microprocessor

Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 16
 18
 8
 12

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Microprocessor
SUB A instruction in 8085

 sets zero and carry flags
 sets zero and sign flags
 reset carry and sign flags
 reset zero and parity flags

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Microprocessor
Identify the programmable interval timer from the following

 8279
 8252
 8275
 8253

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Microprocessor
What are the sets of commands in a program which are not translated into machine instructions during assembly process, called?

 Operands
 Directives
 Mnemonics
 Identifiers

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Microprocessor
What is SIM?

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

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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

 220-1
 220
 220 - 1
 20

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