BCD is the encoding scheme each of the decimal numbers (0 - 9) is represented by it’s equivalent binary pattern (generally 4 bits)
Seven Segment
Seven Segment display is an electronic device which consists of seven Light Emitting Diodes (LEDs) arranged in a definite pattern which is used to display Hexadecimal numerals.
- Common Cathode Type: Display all cathodes of the seven LEDs are connected together to ground and LED displays digits when some ‘HIGH’ signal is supplied to individual anodes
- Common Anode Type: Display all anodes of seven LEDs are connected to battery or LED displays