CS 1104 COMPUTER SYSTEMS ACTUAL QUESTIONS WITH COMPLETE SOLUTIONS.
Name an unary Boolean function: - (ANSWER)NOT
What is the most basic element of every computer system? - (ANSWER)c. Logic Gate
Every Boolean function can be constructed from only: - (ANSWER)c. Nand function
AND - (ANSWER)If a=b=1 then out=1 out=0
NOT - (ANSWER)If in=0 then out=1 else out=0
NAND - (ANSWER)If a=b=1 then out=0 out=1
OR - (ANSWER)If a=b=0 then out=0 out=1
The boolean expression A · B represents which of the following: - (ANSWER)a. A AND B
True/False: According to DeMorgan's Theorem, inverting the output of an AND gate yields the same
output as an OR gate with inverted inputs? - (ANSWER)True
What is the decimal equivalent of the binary number 10011101? Assume "unsigned" binary for the
conversion. - (ANSWER)157
What is the decimal value of 54 (base 10) converted to binary and 2's complement? -
(ANSWER)11001010
Which of the following is NOT a component required to represent a floating point number in binary?
a. Exponent
b. Fraction
, CS 1104 COMPUTER SYSTEMS ACTUAL QUESTIONS WITH COMPLETE SOLUTIONS.
c. Sign bit
d. Precision - (ANSWER)Precision
A coding approach that recognizes the MSB with a value of 1 to be a negative number is called? -
(ANSWER)Signed Magnitude
An unsigned binary number can represent positive and negative numbers but not floating point
numbers. - (ANSWER)False
Adding 011011012 to 101000102 in 8-bit unsigned binary will cause an overflow. - (ANSWER)True
The 2's complement bit string 10101011 converted to decimal equals 85 - (ANSWER)False
The operation to be performed within the ALU is selected with a multiplexor circuit. - (ANSWER)True
In a 16-bit Multiplexor the selector is 16-bit wide. - (ANSWER)False
What is the binary pattern that represents 6ten (in a 16-bit binary system)? -
(ANSWER)0000000000000110
Which Two-Input Boolean function will return 0 for every input it receives? - (ANSWER)Constant 0
The Full Adder chip has: - (ANSWER)3 input pins, 2 output pins.
A decoder has a unique output represented for a set of inputs in a truth table? - (ANSWER)True
According to DeMorgan's Theorem, inverting the output of an AND gate yields the same output as an OR
gate with inverted inputs? - (ANSWER)True
Name an unary Boolean function: - (ANSWER)NOT
What is the most basic element of every computer system? - (ANSWER)c. Logic Gate
Every Boolean function can be constructed from only: - (ANSWER)c. Nand function
AND - (ANSWER)If a=b=1 then out=1 out=0
NOT - (ANSWER)If in=0 then out=1 else out=0
NAND - (ANSWER)If a=b=1 then out=0 out=1
OR - (ANSWER)If a=b=0 then out=0 out=1
The boolean expression A · B represents which of the following: - (ANSWER)a. A AND B
True/False: According to DeMorgan's Theorem, inverting the output of an AND gate yields the same
output as an OR gate with inverted inputs? - (ANSWER)True
What is the decimal equivalent of the binary number 10011101? Assume "unsigned" binary for the
conversion. - (ANSWER)157
What is the decimal value of 54 (base 10) converted to binary and 2's complement? -
(ANSWER)11001010
Which of the following is NOT a component required to represent a floating point number in binary?
a. Exponent
b. Fraction
, CS 1104 COMPUTER SYSTEMS ACTUAL QUESTIONS WITH COMPLETE SOLUTIONS.
c. Sign bit
d. Precision - (ANSWER)Precision
A coding approach that recognizes the MSB with a value of 1 to be a negative number is called? -
(ANSWER)Signed Magnitude
An unsigned binary number can represent positive and negative numbers but not floating point
numbers. - (ANSWER)False
Adding 011011012 to 101000102 in 8-bit unsigned binary will cause an overflow. - (ANSWER)True
The 2's complement bit string 10101011 converted to decimal equals 85 - (ANSWER)False
The operation to be performed within the ALU is selected with a multiplexor circuit. - (ANSWER)True
In a 16-bit Multiplexor the selector is 16-bit wide. - (ANSWER)False
What is the binary pattern that represents 6ten (in a 16-bit binary system)? -
(ANSWER)0000000000000110
Which Two-Input Boolean function will return 0 for every input it receives? - (ANSWER)Constant 0
The Full Adder chip has: - (ANSWER)3 input pins, 2 output pins.
A decoder has a unique output represented for a set of inputs in a truth table? - (ANSWER)True
According to DeMorgan's Theorem, inverting the output of an AND gate yields the same output as an OR
gate with inverted inputs? - (ANSWER)True
