CLAS 150C1 COMPLETE REVIEW 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉A. Answer: The binary string 110111100001 is equivalent to
__________.
A. DE1 (16)
B. C78 (16)
C. FF64 (16)
D. B8F (16)
◉B. Answer: The _________ system uses only the numbers 0 and 1.
A. positional
B. binary
C. hexadecimal
D. decimal
◉C. Answer: Decimal "10" is __________ in binary.
A. 1000
B. 0010
C. 1010
,D. 0001
◉B. Answer: Decimal "10" is _________ in hexadecimal.
A. 1
B. A
C. 0
D. FF
◉C. Answer: Four bits is called a _________.
A. radix point
B. byte
C. nibble
D. binary digit
◉A. Answer: Another term for "base" is __________.
A. radix
B. integer
C. position
D. digit
◉D. Answer: In the number 472.156 the 2 is the _________.
A. most significant digit
,B. radix point
C. least significant digit
D. none of the above
◉B. Answer: Binary 0101 is hexadecimal _________.
A. 0
B. 5
C. A
D. 10
◉T. Answer: One drawback of sign-magnitude representation is that
there are two representations of 0.
◉T. Answer: Both sign-magnitude representation and twos
complement representation use the most significant bit as a sign bit.
◉F. Answer: It is not necessary for the ALU to signal when overflow
occurs.
◉F. Answer: Overflow can only occur if there is a carry.
◉T. Answer: Compared with addition and subtraction, multiplication
is a complex operation, whether performed in hardware of software.
, ◉T. Answer: For each 1 on the multiplier, an add and a shift
operation are required; but for each 0 only a shift is required.
◉T. Answer: Addition and subtraction can be performed on numbers
in twos complement notation by treating them as unsigned integers.
◉F. Answer: Booth's algorithm performs more additions and
subtractions than a straightforward algorithm.
◉T. Answer: With a fixed-point notation it is possible to represent a
range of positive and negative integers centered on or near 0.
◉T. Answer: An advantage of biased representation is that
nonnegative floating-point numbers can be treated as integers for
comparison purposes.
◉F. Answer: For base 2 representation, a normal number is one in
which the most significant bit of the significand is zero.
◉T. Answer: Actual floating-point representations include a special
bit pattern to designate zero.
QUESTIONS WITH SOLUTIONS GRADED A+
◉A. Answer: The binary string 110111100001 is equivalent to
__________.
A. DE1 (16)
B. C78 (16)
C. FF64 (16)
D. B8F (16)
◉B. Answer: The _________ system uses only the numbers 0 and 1.
A. positional
B. binary
C. hexadecimal
D. decimal
◉C. Answer: Decimal "10" is __________ in binary.
A. 1000
B. 0010
C. 1010
,D. 0001
◉B. Answer: Decimal "10" is _________ in hexadecimal.
A. 1
B. A
C. 0
D. FF
◉C. Answer: Four bits is called a _________.
A. radix point
B. byte
C. nibble
D. binary digit
◉A. Answer: Another term for "base" is __________.
A. radix
B. integer
C. position
D. digit
◉D. Answer: In the number 472.156 the 2 is the _________.
A. most significant digit
,B. radix point
C. least significant digit
D. none of the above
◉B. Answer: Binary 0101 is hexadecimal _________.
A. 0
B. 5
C. A
D. 10
◉T. Answer: One drawback of sign-magnitude representation is that
there are two representations of 0.
◉T. Answer: Both sign-magnitude representation and twos
complement representation use the most significant bit as a sign bit.
◉F. Answer: It is not necessary for the ALU to signal when overflow
occurs.
◉F. Answer: Overflow can only occur if there is a carry.
◉T. Answer: Compared with addition and subtraction, multiplication
is a complex operation, whether performed in hardware of software.
, ◉T. Answer: For each 1 on the multiplier, an add and a shift
operation are required; but for each 0 only a shift is required.
◉T. Answer: Addition and subtraction can be performed on numbers
in twos complement notation by treating them as unsigned integers.
◉F. Answer: Booth's algorithm performs more additions and
subtractions than a straightforward algorithm.
◉T. Answer: With a fixed-point notation it is possible to represent a
range of positive and negative integers centered on or near 0.
◉T. Answer: An advantage of biased representation is that
nonnegative floating-point numbers can be treated as integers for
comparison purposes.
◉F. Answer: For base 2 representation, a normal number is one in
which the most significant bit of the significand is zero.
◉T. Answer: Actual floating-point representations include a special
bit pattern to designate zero.
