例如当你查看一个网页时，在设备显示内容之前，页面的副本就加载到你的计算机(或手机，或iPad)的内存。
When you view a web page, for example, a copy of the page is loaded into the video memory of your computer (or phone, or iPad) before the device can display it on the screen.
它支持为创建加载或导出操作创建多个在多个计算机节点上运行的进程。
It supports the creation of multiple processes running on multiple computing nodes for the data load or export operation.
早期时，启动一台计算机意味着要给计算机喂一条包含引导程序的纸带，或者手工使用前端面板地址/数据/控制开关来加载引导程序。
In the early days, bootstrapping a computer meant feeding a paper tape containing a boot program or manually loading a boot program using the front panel address/data/control switches.
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