KwickClips Computer Systems · 43 sec · free
Which circuit is the opposite of an encoder?
Short answer. A decoder.
What chooses the input in a MUX?
The select lines.
Three circuits
| Circuit | In | Out |
|---|---|---|
| Encoder | one line | code |
| Decoder | code | one line |
| MUX | many + select | one |
Remember
| Encoder and decoder: opposites |
| MUX: select lines choose |
Three circuits, three jobs. Can you tell them apart? Each has one job. An encoder turns one line into a code. A decoder turns a code into one line. A MUX selects one input. Two points. Encoder and decoder are opposites. MUX selects.
This clip is from the full lesson: Adders and Combinational Circuits: Half Adder and Full Adder — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ISC Class 11 Computer Science (868), ISC Class 12 Computer Science (868), ISC Class 12 Computer Science (868), Programming All levels C
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