Win键+ ALt + 1、2、3等数字键会打开任务栏上相应程序的跳转列表。

Win + Alt + 1, 2, 3, etc. will open the jump list for each program in the taskbar.

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Win键+ 1、2、3、4等数字键会启动任务栏上相应的程序。

Win + 1, 2, 3, 4, etc. will launch each program in your taskbar.

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但是要使用多任务和硬件抽象等特性，几乎所有人都会使用某种类型的操作系统来运行他们的程序。

But to enjoy features such as multitasking and hardware abstraction, nearly everybody USES an OS of some kind to run their programs.

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