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## Computer organization questions answers aptitude test

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which method/s of representation of numbers occupies a large amount of memory than others?

Sign-magnitude | |

1's complement | |

2's complement | |

1's & 2's compliment |

Question 1 Explanation:

It takes more memory as one bit used up to store the sign.

Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which representation is most efficient to perform arithmetic operations on the numbers?

Sign-magnitude | |

1's complement | |

2'S complement | |

None of the mentioned |

Question 2 Explanation:

The two's complement form is more suitable to perform arithmetic operations as there is no need to involve the sign of the number into consideration.

Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which method of representation has two representations for '0'?

Sign-magnitude | |

1's complement | |

2's complement | |

None of the mentioned |

Question 3 Explanation:

One is positive and one for negative.

Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

When we perform subtraction on -7 and 1 the answer in 2's complement form is .....

1010 | |

1110 | |

110 | |

1000 |

Question 4 Explanation:

First the 2's complement is found and that is added to the number and the overflow is ignored.

Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

When we perform subtraction on -7 and -5 the answer in 2's complement form is .....

11110 | |

1110 | |

1010 | |

10 |

Question 5 Explanation:

First the 2's complement is found and that is added to the number and the overflow is ignored.

There are 5 questions to complete.