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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8255
 8257
 8251
 8155

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0024H.
 0030H.
 0048H.
 0060H.

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Microprocessor
8085 microprocessor has how many pins

 41.
  30.
 39.
  40.

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Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Simplex
 Diplex
 Duplex
 Quadruplex

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Microprocessor
The ROM programmed during manufacturing process itself is called

 PROM
 EEPROM
 EPROM
 MROM

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Microprocessor
The first machine cycle of an instruction is always

 A memory write cycle
 A memory read cycle
 An I/O read cycle
 A fetch cycle

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