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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8257
 8255
 8155
 8251

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Microprocessor
Identify the programmable interval timer from the following

 8275
 8253
 8279
 8252

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 serial I/O is possible through SIM and RIM instruction
 there is a pin available for serial input
 serial I/O is not possible
 there is a pin available for serial output

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Microprocessor
An e-mail message can be sent to many recipients.

True
False

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Microprocessor
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

Arithmetic, relational, assignment
Arithmetic, assignment, relational
Assignment, relational, arithmetic
Relational, assignment, arithmetic

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Microprocessor
An I/O processor controls the flow of information between

Main memory and I/O devices
Cache memory and I/O devices
Two I/O devices
Cache and main memory

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