Flashcards
Unit 4- Logic gates
Cards in this deck (18)
- 1What is a logic gate?The basic foundation of a digital circuit that controls the flow of electronic signals.
- 2What is digital circuit?A circuit where electronic signal are one of two values, high voltage(1) or low voltage(0).
- 3What is voltage?The potential difference across an electrical component needed to make electricity flow through it.
- 4What is microprocessor?An integrated circuit that provides the same function of a CPU.
- 5What is truth table?A way of showing every outcome of a logic gate.
- 6What is an AND gate?X can only be 1 if A and B are 1. Logical statements are known as Boolean statements. Statement for an AND gate is: X=A.B
ADD LOGIC GATE IMAGE FROM BOOK - 7What is a truth table? Truth table of an AND gate.Is a way of showing every outcome of a logic ate.
ADD TABLE FROM BOOK - 8What is an OR gate?X will be 1 if A or B is 1 (It can be 1 or more) Statement for an Or gate is: X=A+B. Sign (+) can be used to represent the word OR . ADD LOGIC GATE IMAGE FROM BOOK
- 9Truth table of an OR gate?ADD TABLE FROM BOOK.
- 10What is a NOT gate?X will only be 1 if A is 0. Statement of an NOT gate:
-
X=A
or
X=A'
ADD LOGIC GATE IMAGE FROM BOOK. - 11Truth table of an NOT gate?TABLE FROM BOOK
- 12What is an NAND gate?X will always be 1 unless A and B are 1. Statement of the NAND gate:
----
X=A.B
or
X=(A.B)'
ADD LOGIC GATE IMAGE FROM BOOK - 13Truth table of a NAND gate?TABLE FROM BOOK
- 14What is a NOR gate?X will always be 0 unless A and B are 0.
Statement for NOR gate:
X=A+B.
ADD LOGIC GATE IMAGE FROM BOOK. - 15Truth table of NOR gate?TABLE FROM BOOK
- 16What is a XOR (EOR) gate?X will always be 1 if inputs A and B are different. Statement for XOR (EOR) gate:
X=A⊕B.
ADD LOGIC GATE IMAGE FROM THE BOOK - 17Truth table of XOR (EOR) gate?TABLE FROM BOOK.
- 18What is a logic circuit? What does it control?A logic circuit is an electronic circuit that combines a number of logic gates. The gates in the logic circuit will control the flow of the electricity through the circuit.
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- Computer science Flashcards on Unit 4- Logic gates, created by lucia larrain on 07/05/2018.
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- lucia larrain
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