A field programmable gate array is best described as?

• A. A field programmable gate array
• B. A fixed-function digital circuit
• C. A passive resistor network
• D. An energy storage device

Answer: (A)

An FPGA is a reconfigurable digital logic device you can program in the field to implement a wide range of circuits. It contains programmable logic blocks and interconnects that you configure to realize the desired logic functions, both combinational and sequential. This reprogrammability is what sets it apart from fixed-function digital circuits, which are designed for a single purpose and can’t be changed after fabrication. It isn’t a passive resistor network, which would merely pass signals without performing logic, nor an energy storage device, which stores energy rather than processing it. By loading a design, you map the circuit into hardware on the chip, enabling flexible, customizable digital implementations.