Chapter 11 - Computer Arithmetic
If two numbers are added, and they are both positive or both negative, then _________ occurs if and only if the result has the opposite sign.
overflow
Positive numbers greater than (2 - 2^-23) x 2^128 are called _________. Question 9 options: A. negative underflow B. positive overflow C. positive underflow D. negative overflow
B
The most common scheme in implementing the integer portion of the ALU is: Question 1 options: A. sign-magnitude representation B. biased representation C. twos complement representation D. ones complement representation
C
`To subtract one number from another, take the twos complement of the subtrahend and add it to the minuend` is the _________ rule.
subtraction
Moving the sign bit to the new leftmost position and filling in with copies of the sign bit is called _________. Question 3 options: A. sign extension B. range extension C. bit extension D. partial extension
A
Positive numbers less than 2^-127 are called ________. Question 8 options: A. positive underflow B. positive overflow C. negative underflow D. negative overflow
A
The _________ is that part of the computer that actually performs arithmetic and logical operations on data.
Arithmetic and Logic Unit (ALU)
Negative numbers greater than 2^-127 are called _________. Question 7 options: A. negative overflow B. negative underflow C. positive overflow D. positive underflow
B
__________ means that the number is too small to be represented and it may be reported as 0. Question 11 options: A. Negative underflow B. Exponent underflow C. Positive underflow D. Significand underflow
B
__________ representation is almost universally used as the processor representation for integers. Question 2 options: A. Biased B. Twos compliment C. Sign-magnitude D. Decimal
B
__________ involves the generation of partial products, one for each digit in the multiplier, which are then summed to produce the final product. Question 5 options: A. Addition B. Subtraction C. Multiplication D. Division
C
__________ is when a positive exponent exceeds the maximum possible exponent value. Question 10 options: A. Significand underflow B. Significand overflow C. Exponent overflow D. Exponent underflow
C
In ________ representation the rule for forming the negation of an integer is to invert the sign bit. Question 4 options: A. ones complement B. twos complement C. biased D. sign-magnitude
D
Negative numbers less than -(2 - 2^-23) x 2^128 are called _________. Question 6 options: A. positive underflow B. positive overflow C. negative underflow D. negative overflow
D
_________ occurs when an arithmetic operation results in an absolute value greater than can be expressed with an exponent of 128.
Overflow
