What is a user interface?
A user interface (UI) is the part of an operating system, program or device that the user uses to input and receive data.

What is a file manager?
A file manager or file browser is a computer program that provides a user interface to manage files and folders.

What does booting the computer mean?
To boot (as a verb; also "to boot up") a computer is to load an operating system into the computer's main memory or random access memory (RAM). Once the operating system is loaded (and, for example, on a PC, you see the initial Windows or Mac desktop screen), it's ready for users to run applications.

What are system resources?
A resource, or system resource, is any physical or virtual component of limited availability within a computer system. Every device connected to a computer system is a resource.

What is basic computer tasks?
In computer programming, a task is a basic unit of programming that an operating system controls. Depending on how the operating system defines a task in its design, this unit of programming may be an entire program or each successive invocation of a program

Can you have a computer without an operating system?
Since one program may make requests of other utility programs, the utility programs may also be considered tasks (or subtasks). All of today's widely-used operating systems support multitasking , which allows multiple tasks to run concurrently, taking turns using the resources of the computer