Summary

System software is the layer that runs the computer and supports apps. It includes operating_systems, device_drivers, firmware, and utility_programs. Core tasks are process_management, memory_management, file_systems, i_o_control, and security. The kernel allocates CPU and memory and handles interrupts. user_interface elements provide shells and desktops. virtualization and system_updates extend and maintain the platform. Typical examples are Windows, Linux, macOS, Android, BIOS, and printer drivers. System software enables application_software to run reliably on hardware.