Computer Organization and Architecture Mcqs

Page No. 6

The addressing mode which makes use of in-direction pointers is ______


aIndirect addressing mode

✓


bIndex addressing mode

✖


cRelative addressing mode

✖


dOffset addressing mode

✖



Add #45, when this instruction is executed the following happen/s _______


a The processor raises an error and requests for one more operand

✖


bThe value stored in memory location 45 is retrieved and one more operand is requested

✓


cThe value 45 gets added to the value on the stack and is pushed onto the stack

✖


dNone of the mentioned

✖



In the case of, Zero-address instruction method the operands are stored in _____


aRegisters

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bAccumulators

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cPush down stack

✓


dCache

✖


View Answer Push down stack

The instruction, Add #45,R1 does _______


aAdds the value of 45 to the address of R1 and stores 45 in that address

✖


bAdds 45 to the value of R1 and stores it in R1

✓


cinds the memory location 45 and adds that content to that of R1

✖


dNone of the mentioned

✖



When 1101 is used to divide 100010010 the remainder is ______


a101

✖


b11

✖


c0

✖


d1

✓


View Answer 1

In the implementation of a Multiplier circuit in the system we make use of _______


aCounter

✖


bFlip flop

✖


cShift register

✓


dPush down stack

✖


View Answer Shift register

In a normal n-bit adder, to find out if an overflow as occurred we make use of ________


aAnd gate

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bNand gate

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cNor gate

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d Xor gate

✓


View Answer Xor gate

For the addition of large integers, most of the systems make use of ______


aFast adders

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b Full adders

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cCarry look-ahead adders

✓


dNone of the mentioned

✖



The most efficient method followed by computers to multiply two unsigned numbers is _______


aBooth algorithm

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bBit pair recording of multipliers

✓


c Restoring algorithm

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dNon restoring algorithm

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In some pipelined systems, a different instruction is used to add to numbers which can affect the flags upon execution. That instruction is _______


a AddSetCC

✓


b AddCC

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cAdd++

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dSumSetCC

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View Answer AddSetCC

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