

Forrest M. Mims III, Understanding Digital Computers, Radio Shack, 1987 BCD TO SEVENSEGMENT DECODER LOGIC DIAGRAM Take a close look at the readout of almost any digital watch, clock or pocket calculator, and you'll see the seven distinct segments of each digit position. Look closely and you'll also see the decimal point (calculators only). Like the BCDdecimal decoder, the BCD to sevensegment decoder is a complicated logic network. If you have a few spare minutes you can verify the operation of the BCD to sevensegment decoder with the help of the logic diagram and truth table, but it's really not necessary.
