USB 或通用串行总线 Universal Serial Bus

Glossary

USB 或通用串行总线 (Universal Serial Bus)

个人电脑周边设备的一种灵便插口。USB 自动辨识周边设备所需的资源（比如驱动器软件和总线带宽）。USB 无需用户参预即能运用各种资源。

● USB 消除了“外壳恐惧症”——一种由打开电脑外壳安装附加周边设备所引起的害怕感。USB同样避免了安装新周边设备时对复杂的“中断请求”（IRQ）设置的调整。

● USB 清除了“端口拥塞”现象。若无 USB，个人电脑通常限于一台打印机、两个通讯端口装置（一般是滑鼠和调制解调器），一个增强平行端口附加装置（例如扫描器或视频照像机），以及一个•戏手柄。越来越多的多媒体电脑运用的周边设备每天都出现于市场。有了USB，多至 127 个装置同时可以运用于一台电脑上。

● USB 允许“热插入”。无需关机、插入、重新起动、运行安装系统来安装周边设备。也无需进行相反程序拔出某一装置。

简而言之，USB 将当今的“插入即怕”变成真正的“插入即用”！

插座 (Hub)

一种通用串行总线装置，为提供通用串行总线另外的连接。

插座是USB“插入即用”结构中的主要部件。下图显示一个典型的插座。插座从用户的角度简化了USB之连接性，在廉价和简捷的基础上提供了高性能。

插座为带线接头，使USB的多附件特性得以实现。附加点则被称为端口。每一插座将单个附加点转变成多个附加点。其总结构支持多个插座的相互串联。

插座的上游端口连接插座与主机。插座每一下游端口可与另一插座或功能装置连接。插座能够检测、附上和拆下于每一下游端口，促使电源向下游装置的输送。每一下游端口皆能单独起动、设置成全速或慢速。

一个插座由两部份组成：插座控制器和插座中继器。中继器是由规程控制的上游端口和下游端口之间的枢纽。它也配有重设和暂停/继续信号的硬件支持。控制器提供接口寄存器，促成主机间的往返通讯。插座具体状态和控制指令允许主机设置某一插座及控制其端口。

装置

一个执行某一功能的逻辑性或物质性实体。所述实际实体依其所涉及情况而定。在最低层次，装置可指单个硬件元件，例如存储器。在较高层次，它可指执行某一特别功能的一套硬件元件，例如通用串行总线接口装置。在更高层次，装置可指连接于通用串行总线的执行功能的实

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170B6 specifications

The Philips 170B6 is a remarkable entry in the world of display technology, garnering attention for its blend of functionality, performance, and eco-friendliness. This 17-inch LCD monitor is designed for users seeking reliable and sharp image quality, making it suitable for both professional and personal use.

One of the standout features of the Philips 170B6 is its Crystal Clear technology. This technology enhances image clarity and detail, ensuring that images appear sharp, vibrant, and true to life. With a maximum resolution of 1280 x 1024 pixels, the monitor delivers a crisp, clear viewing experience ideal for tasks such as graphic design, document editing, and everyday browsing.

The monitor features a quick response time of 8 milliseconds, significantly reducing the occurrence of ghosting and motion blur in fast-moving images. This makes it an excellent choice for multimedia applications and gaming, allowing users to enjoy smooth and fluid visuals without compromising on quality.

Another notable characteristic of the Philips 170B6 is its versatility in connectivity. The monitor comes equipped with multiple input options, including VGA and DVI, which enable seamless integration with various devices such as computers and laptops. This flexibility ensures that users can connect the monitor to their preferred devices without hassle.

Ergonomics plays a significant role in the design of the Philips 170B6. The monitor offers height adjustment, tilt, and swivel capabilities, allowing users to customize their viewing angle and position for optimal comfort. This is particularly useful for extended work sessions where adjustability can reduce strain on the neck and back.

Additionally, the Philips 170B6 embraces eco-friendly practices. It is designed to meet Energy Star standards, which helps lower power consumption and costs while also reducing the environmental impact of electronic waste. The monitor also features a low power consumption mode, ensuring that it operates efficiently even when idle.

In summary, the Philips 170B6 is a compelling monitor that combines innovative technology with user-focused design. With its Crystal Clear display, quick response time, versatile connectivity, and ergonomic features, it stands out as a reliable choice for those looking for an efficient and high-performance display solution. Furthermore, its eco-friendly attributes make it a responsible choice for consumers conscious of their environmental footprint.