An operating system is the most important software running on a computer. Without it, a computer cannot operate its hardware or run applications and games. An operating system manages the applications and “resources” (such as disk drives, memory and processors/cores). Any device inside the computer or plugged into the computer system is managed by the operating system. The operating system manages running applications or programs, which are called processes. Writer Bio

Common Hardware   Software Resources Managed by Operating Systems - 58