Encoders convert decimal input to binary coded decimal (BCD) output, while decoders convert BCD input to decimal output displayed on a 7-segment display. An example encoder converts decimal numbers to their BCD coded form, while an example decoder converts BCD codes into the decimal numbers they represent, which are then shown on a 7-segment LED display. The document provides examples of encodings and decoding between decimal, BCD, and 7-segment display representations and tests the reader with questions about decoding BCD inputs.

1. Encoder and DecoderEncoding, Decoding

2. EncoderENCODER- a digital circuit that produces a binary output code depending on which of its inputs are activated.

3. DecoderDECODER- a digital circuit that converts an input binary code into a single numeric output.

4. ENCODERS AND DECODERSONLY ONE INPUT ACTIVATED AT A TIMEBINARY CODE INPUTONLY ONE OUTPUT ACTIVATED AT A TIMEBINARY CODE OUTPUT

5. THE 8421 BCD CODEBCD stands for Binary-Coded Decimal.A BCD number is a four-bit binary group that represents one of the ten decimal digits 0 through 9. Example:Decimal number 4926 4 9 2 68421 BCD coded number0100 10010010 0110

6. 3ELECTRONIC ENCODER - DECIMAL TO BCDBCD outputDecimal input0 0 0 00 1 0 10 1 1 10 0 1 1DecimaltoBCDEncoder750Encoders are available in IC form.

7. This encoder translates from decimal input to BCD output.10 line to 4 line Encoder

9. 10 line to 4 line Encoder

11. 4 line to 10 line Decoder

12. DECODERS: BCD TO 7-SEGMENT DECODER/DRIVERDecimal outputLEDBCD input0 0 0 00 0 0 10 0 1 00 0 1 10 1 0 0BCD-to-7-SegmentDecoder/DriverElectronic decoders are available in IC form.

13. This decoder translates from BCD to decimal.

14. Decimals are shown on an 7-segment LED display.

15. This IC also drives the 7-segment LED display.TEST Q #1- What is the decimal output from the decoder that appears on the 7-segment display? Q #2- What is the decimal output from the decoder that appears on the 7-segment display? Q #3- What is the decimal output from the decoder that appears on the 7-segment display? Q #4- What is the decimal output from the decoder that appears on the 7-segment display? Q #5- What is the decimal output from the decoder that appears on the 7-segment display?Answer: 3Answer: 0Answer: 9Answer: 7Answer: 6BCD inputDecimal output1 0 0 10 0 1 10 0 0 00 1 1 10 1 1 0BCD-to-7-SegmentDecoder/Driver?

18. TEST

19. TEST

20. TESTANSWER THE FOLLOWING QUESTIONS WITH ONE OR MORE OF THESE WORDS: MUX, DEMUX, ENCODER, DECODER.A. Has more inputs than outputs.ENCODER, MUXB. Uses select inputs.MUX, DEMUXC. Can be used in parallel-to-serial conversion.MUXD. Produces a binary code at its output.ENCODER