Answer: the user interface
When you turn the power on to your PC the OS displays _____ when the computer is ready for you to begin a task.
Control-Alt-Delete (often abbreviated to Ctrl+Alt+Del also known as the "three-finger salute" or "Security Keys") is a computer keyboard command on IBM PC compatible computers invoked by pressing the Delete key while holding the Control and Alt keys: Ctrl+Alt+Delete.The function of the key combination differs depending on the context but it generally interrupts or facilitates interrupting a ...
An operating system ( OS ) is system software that manages computer hardware software resources and provides common services for computer programs.. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time mass storage printing and other resources.. For hardware functions such as input and ...
Windows NT startup process - Wikipedia
Power-on self-test - Wikipedia
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