Decoders take binary codes of n bits and generate 2n outputs. Each possible set of inputs is mapped to a corresponding output. Thus, an input is decoded from n bits and output as a 2n bit number.
A decoder analyzes all its input bits to determine the corresponding decoded output. A regular decoder can generate the wrong output when there is more than one input equal to 1.
An encoder analyzes all its input bits to determine the corresponding encoded output. A priority encoder can generate the wrong output when there is more than one input equal to 1. A regular encoder, however, can have multiple inputs equal to 1.
An encoder analyzes all its input bits to determine the corresponding encoded output. A regular encoder can generate the wrong output when there is more than one input equal to 1. A priority encoder, however, can have multiple inputs equal to 1, as it prioritizes certain inputs and can ignore others.
When one input is low, the lights that are on display the corresponding binary number. When two inputs are low, lights display the binary number corresponding to the highest of the two input values.
When one input is low, the lights that are off display the corresponding binary number. When two inputs are low, lights display the binary number corresponding to the highest of the two input values.
The larger input number takes priority.
The smaller input number takes priority.
Encoders translate a number from n bits to 2n bits whereas decoders translate a number from 2n bits to n bits. This is because the goal of an encoder is to increase the number of bits whereas the goal of a decoder is to translate a larger, encoded number back into its short form.
Encoders translate a number from 2n bits to n bits whereas decoders translate a number from n bits to 2n bits. This is because the goal of an encoder is to reduce the number of bits whereas the goal of a decoder is to translate a shortened, encoded number back into its long form.
It decides which of the inputs enters the decoders first
It converts n bits to 2^n outputs
Determines whether the circuit will operate when it is set to either 0 or 1
All of the above
2 NOT gates and 4 AND gates
2 NOT gates and 4 OR gates
2 AND gates and 4 NOT gates
2 AND gates and 4 OR gates
Only one of the n outputs can be 1
Only one of the 2^n inputs can be 1
There must be an enable input
Can store a maximum of 2 bits of information
