What is the BCD to 7-segment decorder?

A BCD (Binary-Coded Decimal) to 7-segment decoder is a digital circuit that converts a 4-bit binary input, representing a decimal digit (0-9), into a format suitable for driving a 7-segment display. Each output from the decoder corresponds to one of the 7 segments of the display, lighting up the appropriate segments to visually represent the decimal digit. For example, the binary input "0000" lights up the segments to display the number "0," while "1001" corresponds to "9." This type of decoder is commonly used in digital clocks, calculators, and other devices that need to display numeric information.