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


bAccumulators


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


bNand gate


cNor gate


d Xor gate


View Answer Xor gate

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


aFast adders


b Full adders


cCarry look-ahead adders


dNone of the mentioned



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


aBooth algorithm


bBit pair recording of multipliers


c Restoring algorithm


dNon restoring algorithm



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


cAdd++


dSumSetCC


View Answer AddSetCC

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