PowerHA is used for both planned and unplanned outages and provides the mechanics for one server to failover to another in case of a hardware event.

PowerHA能够应对计划内和计划外停机，能够在发生硬件故障时从一台服务器向另一台服务器进行故障转移。

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When an operating system is interrupted because of a hardware event (such as the presence of a packet through a network adapter), the processing begins in an interrupt.

操作系统会因为一个硬件事件而产生中断(例如出现了一个来自网卡的数据包)，对该事件的处理过程从一个中断开始。

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When the device agent captures or receives data from its associated hardware, it publishes the data as an event message.

设备代理从关联硬件捕获或接收到数据时，会将数据作为事件消息发布。

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Jack Dorsey, Square cofounder and CEO, unveiled the new hardware at an event in San Francisco Tuesday.

FORBES: Square Launches Stand, A New Point Of Sale Device

Today we got to see the thing in action at the Pepcom event here at CES. The hardware is a small black plastic box that should plug into most cars sold in the US after 1996.

ENGADGET: Delphi / Verizon's Vehicle Diagnostics hands-on (video)

What you might not know is that this critical event depends on British-designed and -built hardware.

BBC: Juno Jupiter probe gets British boost