An Introduction to Operating Systems Subject-OS Unit-1 An OS performs basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as printers. An Operating System, or OS, is low-level software that enables a user and higher-level application software to interact with a computer’s hardware and the data and other programs stored on the computer. An Operating System is a program that acts as an intermediary/interface between a user of a computer and the computer hardware. OS goals: Control/execute user/application programs. Make the computer system convenient to use. Ease the solving of user problems. Use the computer hardware in an efficient manner Computer Hardware Organization An Operating System acts as a communication bridge (interface) between the user and computer hardware. Memory Management It keeps ...