Config.sys

Config.sys is a configuration file used in older Windows and MS-DOS computers to set up essential system settings during startup. It contains commands that tell the computer how to load hardware drivers and configure system resources like memory, printers, and disk controllers before Windows or the operating system fully loads. Think of it as a set of instructions that prepare the computer's environment, ensuring hardware components work smoothly and efficiently. While modern systems have replaced Config.sys with more advanced methods, it was a key part of configuring older PCs for optimal performance.