A text editor is a software program that allows users to create and edit plain text files. Text editors are used by developers to write code and by writers to create documents. Examples of text editors include Notepad, Sublime Text, and Atom. See more A field-programmable gate array (FPGA) is an integrated circuit that can be programmed to perform complex digital logic functions. Unlike microcontrollers, which have fixed functionality, FPGAs can be reconfigured to perform different tasks. They are used in applications such as digital signal processing, image processing, and networking.