Glossary

U

USB or Universal Serial Bus

A smart plug for PC peripherals. USB automatically determines resources (like driver software and bus bandwidth) required by peripherals. USB makes necessary resources available without user intervention.

USB eliminates "case anxiety" -- the fear of removing the computer case to install add-on peripherals. USB also eliminates adjustment of complicated IRQ settings when installing new peripherals.

USB does away with "port gridlock." Without USB, PCs are normally limited to one printer, two Com port devices (usually a mouse and modem), one Enhanced Parallel Port add-on (scanner or video camera, for example) and a joystick. More and more peripherals for multimedia computers arrive on the market every day. With USB, up to 127 devices can run simultaneously on a computer.

USB permits "hot plug-in." There's no need to shut down, plug in, reboot and run set-up to install peripherals. And no need to go through the reverse process to unplug a device.

In short, USB transforms today's "Plug-and-Pray" into true Plug-and-Play!

Hub

A Universal Serial Bus device that provides additional connections to the Universal Serial Bus.

Hubs are a key element in the plug-and-play architecture of USB. The Figure shows a typical hub. Hubs serve to simplify USB connectivity from the user's perspective providing low cost and complexity.

Hubs are wiring concentrators and enable the multiple attachment characteristics of USB. Attachment points are referred to as ports. Each hub converts a single attachment point into multiple attachment points. The architecture supports concatenation of multiple hubs.

The upstream port of a hub connects the hub towards the host. Each of the other downstream ports of a hub allows connection to another hub or function. Hubs can detect, attach and detach at each downstream port and enable the distribution of power to downstream devices. Each downstream port can be individually enabled and configured at either full or low speed. The hub isolates low speed ports from full speed signaling.

A hub consists of two portions: the Hub Controller and Hub Repeater. The repeater is a protocol- controlled switch between the upstream port and downstream ports. It also has hardware support for reset and suspend/resume signaling. The controller provides the interface registers to allow

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Philips 190S5 user manual USB or Universal Serial Bus

190S5 specifications

The Philips 190S5 is a well-regarded monitor that appeals to users seeking a combination of performance, versatility, and energy efficiency. This display is particularly notable for its balanced features that cater to both home and office environments.

One of the standout characteristics of the Philips 190S5 is its 19-inch screen size, which strikes an excellent balance between compactness and usability. With a native resolution of 1280x1024 pixels, this monitor delivers sharp and clear images, making it suitable for various applications, from professional work to leisure activities like browsing the internet or watching videos.

The Philips 190S5 integrates several technologies that enhance the overall viewing experience. It employs an LCD panel, which ensures greater energy efficiency compared to traditional CRT monitors. This technology not only reduces power consumption but also contributes to a slimmer design, making it easier to integrate into different spaces. Furthermore, the monitor boasts a wide viewing angle, allowing users to view content clearly from multiple positions without significant color distortion.

In terms of connectivity, the Philips 190S5 is equipped with standard VGA inputs, allowing seamless connection to a variety of devices. This flexibility makes it an ideal choice for users with different types of computers and laptops.

One of the key features of the Philips 190S5 is its SmartImage technology, which optimizes the display settings for different applications. Whether users are working on graphic design, gaming, or simply viewing photos, this feature automatically adjusts to provide the best possible picture quality. Additionally, the monitor's built-in low blue light mode significantly reduces eye strain, making lengthy usage more comfortable.

The design of the Philips 190S5 is functional and sleek, featuring an anti-glare coating that reduces reflections and enhances visibility even in bright environments. Its VESA mounting capability offers added versatility, allowing users to save desk space by mounting the monitor on a wall or an adjustable arm.

In summary, the Philips 190S5 is a versatile 19-inch monitor that combines quality technologies and features to provide an excellent viewing experience. With its energy-efficient design, SmartImage technology, and user-friendly connectivity options, it is well-suited for a range of applications in both home and professional settings. Whether for work or entertainment, this monitor remains a solid choice for users looking for reliable performance.