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Microprocessor

Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 3.
 2.
 6.
 4.

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

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

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

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Microprocessor
Pick out the matching pair

 HOLD; DMA
 READY; RIM
 S0;S1;wait status
 SID; SIM

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Microprocessor
In Fortran 77 a variable name can contain special characters.

True
False

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Instruction cycle
 Clock cycle
 Machine cycle
 Memory cycle

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