On the other hand, very few PDAs can be configured to work as USB host devices; if you're willing to put in the time and effort, the 770 can use USB hard drives.

另一方面，很少有 PDA 设备可以配置成作为 USB 主机设备来工作；如果您愿意花一些时间和精力，770 甚至可以使用 USB 硬盘。

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A hub is at the center of each star, and the USB host is considered the root hub.

一个hub是每个星形的中心，usb主机被认为是root hub。

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USB host controllers follow one of two standards: UHCI (Universal host controller Interface) or OHCI (Open host controller Interface).

usb主机控制器遵循两个标准之一：UHCI(通用主机控制器接口)或OHCI(开放式主机控制器接口)。

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Most of the changes to Honeycomb are happening under the hood -- better HTML5 support, faster performance, and USB host functionality for connecting peripherals like game controllers and mice -- but there are some improvements that will be a lot more obvious to the user.

ENGADGET: Android 3.1 on the Motorola Xoom: hands-on (video)

Rather than build a full media hub, ASUS appears to be crafting a possibly Roku-like dongle that would graft Google TV on to a host device through USB.

ENGADGET: blogger-avatar

The precious little 4.3-inch Windows CE 5.0 (the photo shows XP but whatever) clamshell's got a 533MHz Samsung 2442A CPU, 128MB of SDRAM, between 1GB and 4GB of flash memory, and a USB 2.0 port on top of a host of optional features (GPS, DVB-T digital TV, WiFi, the ability to tell you the future).

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