Converting a binary number into the pattern needed to drive a seven-segment LED display requires a circuit called a(n) ______?

Converting a binary number into the pattern needed to drive a seven-segment LED display requires a circuit called a(n) ______?

• A. decoder
• B. encoder
• C. demultiplexer
• D. multiplexer

Answer: (A)

The pattern you need to drive a seven-segment display is produced by a device that decodes a binary value into a specific set of outputs. A decoder takes a binary input and activates the appropriate combination of outputs to form the correct segment pattern for the digit. For a seven-segment display, a BCD-to-7-seg or similar decoder translates the binary digit into the seven segment control signals, lighting exactly the segments needed for that digit. The other options don’t perform this mapping: an encoder compresses inputs, a demultiplexer routes one input to many outputs, and a multiplexer selects one of many inputs to a single output.

The pattern you need to drive a seven-segment display is produced by a device that decodes a binary value into a specific set of outputs. A decoder takes a binary input and activates the appropriate combination of outputs to form the correct segment pattern for the digit. For a seven-segment display, a BCD-to-7-seg or similar decoder translates the binary digit into the seven segment control signals, lighting exactly the segments needed for that digit. The other options don’t perform this mapping: an encoder compresses inputs, a demultiplexer routes one input to many outputs, and a multiplexer selects one of many inputs to a single output.