What is used to design the configuration of a field-programmable gate array (FPGA)?

A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturing. The configuration is generally specified using a hardware description language (HDL), such as VHDL or Verilog. HDL allows designers to write code that defines the behavior and structure of the electronic circuits within the FPGA. This is distinct from machine or assembly language, which is used to write software instructions for microprocessors, not to configure physical hardware gates. Karnaugh maps are a manual method for simplifying Boolean algebra expressions, and auto-routers are used in printed circuit board (PCB) layout design, making those options incorrect.