5-59.5-60.5-61.5-62.5-63.A zero in what (a) position indicates a positivenumber and a one in what (b) position indicates anegative number?1. (a) msb(b) lsb2. (a) msb(b) msb3. (a) lsb(b) lsb4. (a) lsb(b) msbIn a 6-bit register, the largest positive value thatcan be contained is what decimal number?1. 312. 323. 634. 64When floating-point operations are performed,the radix point must be aligned properly. Thealignment of the radix point takes place at whichof the following times?1. During arithmetic operations only2. After arithmetic operations only3. Either during or after arithmetic operations,depending on the type of operation4. Before arithmetic operationsIn floating-point operations, what is thefractional portion of the number called?1. Characteristic2. Mantissa3. Radix4. SignIn a number, the radix point is usually placed inwhat location?1. Between the sign bit and the msb of thecharacteristic2. Between the sign bit and the lsb of thecharacteristic3. Between the sign bit and the lsb of themantissa4. Between the sign bit and the msb of themantissaIN ANSWERING QUESTION 5-64, REFER TOFIGURE 5-15, FRAME A, ON PAGE 5-21 IN THETRAMAN.5-64.5-65.5-66.5-67.5-68.For which of the following reasons is zeroextended through the most significant 16 bits ofthe word that contains the characteristic?1. The integer is a positive number2. The integer is a negative number3. The mantissa is a positive number4. The mantissa is a negative numberWhere the most accuracy is required duringfloating-point operations, (a) what format is usedwith two 32-bit words and (b) what is therelationship of the characteristic to the mantissa?1. (a) Single-precision(b) Characteristic is smaller2. (a) Single-precision(b) Characteristic is larger3. (a) Double-precision(b) Characteristic is smaller4. (a) Double-precision(b) Characteristic is largerUnder which of the following conditions are themantissa’s results rounded up?1. When the mantissa is less than one-half ofone only2. When the mantissa is greater than one-half ofone only3. When the mantissa is equal to or less thanone-half of one4. When the mantissa is equal to or greater thanone-half of oneWhat type of floating-point interrupt condition, ifany, exists when there is a positive excess?1. Overflow2. Underflow3. Divisor4. None, there is no floating point interruptWhat method does the ALU use to performarithmetic and logical instructions?1. Logical quotients of the logic gates2. Logical products of the logic gates3. Logical sums of the logic gates4. Logical differences of the logic gates33

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