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Microprocessor

Microprocessor
A combinational PLD with a programmable AND array and a programmable OR array is called a

 PLD
 PLA
 PAL
 PROM

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Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 DMA bus
 Control bus
 Memory bus
 Address bus

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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

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

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 To achieve all the functions listed above
 To latch data D0-D7 from data bus
 To disable data bus
 Enable the data bus to be used as low order address bus

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Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8255.
 8257.
 8212.

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

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

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