Exam Practice - CS 1104 -Computer System

Name an unary Boolean function:

What is the most basic element of every computer system?

• a) CPU

• b) Memory

• c) Logic Gate

• d) ALU

Every Boolean function can be constructed from only:

• a) And function

• b) Or function

• c) Nand function

• d) Not Function

Which Two-Input Boolean function will return 0 for every input it receives?

• a) Constant 0

• b) Not

• c) Nor

• d) And

Given the following logic gate, select the truth table from below that is NOT valid given the format A - B - Output:

• a) 0 - 0 - 0

• b) 0 - 1 - 1

• c) 1 - 1 - 1

• d) 1 - 0 - 0 

Given the following logic gate, select the truth table from below that is NOT valid given the format A - B - Output:

• a) 0 - 0 - 0 

• b) 0 - 1 - 1 

• c) 1 - 1 - 1

• d) 1 - 0 - 1

The boolean expression A · B represents which of the following:

• a) A AND B

• b) A OR B

• c) A AND NOT B

• d) A NAND B

The boolean expression  represents which of the following:

• a) A NOR B

• b) A AND B

• c) A NOT B

• d) A NAND B

According to DeMorgan's Theorem, inverting the output of an AND gate yields the same output as an OR gate with inverted inputs?

• a) True

• b) False

True/False: An unsigned binary number can represent positive and

negative numbers but not Floating point numbers

• a) True

• b) False