Glossary

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 communication to/from the host. Hub specific status and control commands permit the host to configure a hub and to monitor and control its ports.

Device

A logical or physical entity that performs a function. The actual entity described depends on the context of the reference. At the lowest level, device may refer to a single hardware component, as in a memory device. At a higher level, it may refer to a collection of hardware components that perform a particular function, such as a Universal Serial Bus interface device. At an even higher level, device may refer to the function performed by an entity attached to the Universal Serial Bus; for example, a data/FAX modem device. Devices may be physical, electrical, addressable, and logical.

Downstream

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Philips 200PW8 user manual Device
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200PW8 specifications

The Philips 200PW8 is a notable entry in the realm of LCD monitors, celebrated for its impressive blend of technology, visual performance, and ergonomic design. Aimed at both professional and casual users, this monitor is designed to enhance productivity and deliver an exceptional viewing experience.

One of the standout features of the Philips 200PW8 is its 20-inch LCD panel, which utilizes advanced IPS (In-Plane Switching) technology. This allows for wider viewing angles, ensuring that colors remain consistent and vibrant, regardless of the position from which the monitor is viewed. The monitor supports a native resolution of 1600 x 1200 pixels, providing sharp and detailed images that are ideal for various tasks, from graphic design to everyday office applications.

Additionally, the Philips 200PW8 boasts a fast response time, which minimizes motion blur and ghosting during dynamic scenes, making it suitable for gaming and video playback as well. The monitor also comes with a high contrast ratio, enhancing the depth of colors and providing a more immersive visual experience.

Another significant characteristic of the Philips 200PW8 is its versatility in connectivity. The monitor is equipped with multiple input options, including both VGA and DVI connections. This compatibility ensures that it can easily interface with a range of devices, from older computers to modern laptops, providing flexibility in a variety of settings.

Ergonomically, the monitor is designed with user comfort in mind. It features height adjustment, tilt, and swivel functionalities, allowing users to customize their viewing angles and promote better posture during long hours of use. Furthermore, the monitor’s sleek and modern design incorporates a narrow bezel, making it an attractive addition to any workspace.

In terms of energy efficiency, the Philips 200PW8 adheres to sustainability standards, consuming less power than traditional monitors. This is not only beneficial for reducing electricity bills but also aligns with growing environmental consciousness.

In summary, the Philips 200PW8 emerges as a versatile and feature-rich monitor that is well-suited for a range of applications. With its IPS technology, high resolution, responsive performance, and ergonomic design, it meets the needs of users looking for both quality and comfort in their computing experience.
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