1 1.6: Macduff first enters the play when the King and noblemen arrive at Inverness to stay with Macbeth. 2  He has no lines in the scene, which is noteworthy only because the scene is filled with the fawning of his fellows.
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. Since one program may make requests of other utility programs, the utility programs may also be considered tasks (or subtasks).
A computer program is a collection of instructions, performing a specific task when executed by a computer.A computer requires programs to function, and typically executes the program's instructions in a central processing unit. A computer program is usually written by a computer programmer in a programming language.n operating system is a computer program that acts as an intermediary between a user of a computer and the computer hardware. The purpose of an operating system is to provide an environment in which a user can execute programs in a convenient and efficient manner.