插座 Hub | Philips 190B9 guide

Glossary

● 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体，例如数据/传真调控解调器。装置可能是物质的、电子的、可按址访问的和逻辑性的。

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190B9 specifications

The Philips 190B9 is a remarkable computer monitor that has gained attention for its blend of advanced technology, ergonomic design, and eco-friendliness. This display is ideal for both professional and personal use, providing users with a reliable and efficient viewing experience.

One of the main features of the Philips 190B9 is its 19-inch screen size, offering ample workspace for multitasking and productivity. It boasts a resolution of 1280 x 1024 pixels, delivering crisp and clear images that enhance visual clarity. The monitor utilizes an IPS (In-Plane Switching) panel, which provides wide viewing angles and accurate color reproduction. This makes it an excellent choice for graphic designers and video editors who require precise color accuracy and consistency.

The Philips 190B9 also features a quick response time, ensuring that fast-moving images are displayed smoothly without motion blur. This characteristic makes it suitable for both gaming and fast-paced video content, giving users an immersive viewing experience.

In terms of adjustability, the Philips 190B9 offers a wide range of ergonomic features. The monitor supports height adjustment, tilt, swivel, and pivot functions, allowing users to customize their viewing angles for optimal comfort. This flexibility is essential for reducing eye strain and neck discomfort during long hours of use.

Another standout aspect of the Philips 190B9 is its commitment to sustainability. It is designed with energy efficiency in mind and is ENERGY STAR certified, which signifies that it meets strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. The monitor also incorporates materials that are free from hazardous substances, making it a great choice for environmentally conscious consumers.

Connectivity is another key feature of the Philips 190B9. The monitor includes multiple input options, such as VGA and DVI, allowing for easy connectivity to various devices, including computers, laptops, and tablets. This versatility ensures that users can easily integrate the monitor into their existing setups.

In conclusion, the Philips 190B9 is a versatile monitor that combines excellent display quality, ergonomic adjustability, energy efficiency, and various connectivity options. It caters to a wide range of users, making it a valuable addition to any workspace or home setup. With its focus on both performance and sustainability, the Philips 190B9 stands out as a strong contender in the market for reliable computer monitors.