Logic Gates and Binary

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Logic Gates and Binary by Scott Cullis
ronnie barker
Flashcards by ronnie barker, updated more than 1 year ago
ronnie barker
Created by ronnie barker about 9 years ago
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Question Answer
The AND gate gives a high output (1) only if all its inputs are high. A dot (.) is used to show the AND operation i.e. A.B. The OR gate gives a high output (1) if one or more of its inputs are high. A plus (+) is used to show the OR operation.
inverted version of the input . It is also known as an inverter. The outputs of all NAND gates are high if any of the inputs are low. The symbol is an AND gate with a small circle on the output. The small circle represents inversion.
The outputs of all NOR gates are low if any of the inputs are high. The symbol is an OR gate with a small circle on the output. give a high output if either, but not both, of its two inputs are high. An encircled plus sign (+) is used to show the EOR (EXOR) operation.
does the opposite to the EOR gate (EXOR). It will give a low output if either, but not both, of its two inputs are high. The symbol is an EXNOR gate with a small circle on the output. Now to Binary
binary to denary for example 11001 into denary is 25 1 + 8 +16 Now to Hexadecimal
These are the 16 hexadecimal digits : 0 1 2 3 4 5 6 7 8 9 A B C D E F. Each hex digit reflects a 4-bit binary sequence.
B4 (hex) to Denary (example) 11 and 4 B4 (hex) to Binary 1011 0100
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