Book 1 Chapter 6 - logic gates Flashcards

1
Q

What is a redundant NAND gate

A

A redundant NAND gate is when there are two one input NAND gates in a row.

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2
Q

What is the truth table and boolean algebra for a NOT gate

A

Q = A’ (where ‘ should be a line above A indicating that it’s the inverse)
Inputs
A Q
————|————|
0 1
————|————|
1 0
————|————|

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3
Q

What is the truth table and boolean algebra for an AND gate

A

Q=A.B
A B Q
————|————|————|
0 0 0
————|————|————|
0 1 0
————|————|————|
1 0 0
————|————|————|
1 1 1
————|————|————|

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4
Q

What is the truth table and boolean algebra for a NAND gate

A

Q = A.B (line over the top)
A B Q
————|————|————|
0 0 1
————|————|————|
0 1 1
————|————|————|
1 0 1
————|————|————|
1 1 0
————|————|————|

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5
Q

What is the truth table and boolean algebra for a OR gate

A

Q = A+B
A B Q
————|————|————|
0 0 0
————|————|————|
0 1 1
————|————|————|
1 0 1
————|————|————|
1 1 1
————|————|————|

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6
Q

What is the truth table and boolean algebra for a NOR gate

A

Q = A+B (line over the top)
A B Q
————|————|————|
0 0 1
————|————|————|
0 1 0
————|————|————|
1 0 0
————|————|————|
1 1 0
————|————|————|

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7
Q

How can you make a NOT gate out of NAND gates

A

A one input NAND gate

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8
Q

How can you make a OR gate out of NAND gates

A

Two one input NAND gates that act as inputs for a NAND gate

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9
Q

How can you make a NOR gate out of NAND gates

A

Two one input NAND gates that act as inputs for a NAND gate which then feeds into a one input NAND gate.

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10
Q

How can you make a AND gate out of NAND gates

A

A NAND gate into a one input NAND gate

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