Glossary

pixel on an active matrix LCD.

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 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

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Philips 190V1SB/00 user manual USB or Universal Serial Bus, Hub
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190V1SB/00, 190V specifications

The Philips 190V1SB/00 is a high-performance display designed to deliver exceptional viewing experiences, catering to the needs of both professionals and everyday users. This 19-inch monitor stands out with its sleek design and impressive features that improve productivity and enhance multimedia enjoyment.

One of the main characteristics of the Philips 190V1SB/00 is its 19-inch LCD panel, which offers a resolution of 1280 x 1024 pixels. This aspect ratio provides crisp and clear images, making it ideal for both work and leisure activities. The monitor's static contrast ratio of 1000:1 and dynamic contrast ratio of 20,000,000:1 ensure vibrant colors and deep blacks, facilitating an attractive visual experience during presentations, graphic design tasks, or watching videos.

The display features a fast response time of 5 milliseconds, which minimizes motion blur and ghosting effects during fast-paced action. Additionally, the Philips 190V1SB/00 employs advanced VGA and DVI-D inputs, allowing for broad compatibility with various devices, including PCs, laptops, and gaming consoles.

Another notable aspect is the monitor's Eco-friendly design, which includes a Low Power Mode that significantly reduces energy consumption. This focus on sustainability is further exemplified by its certification in compliance with Energy Star guidelines, making the Philips 190V1SB/00 a responsible choice for energy-conscious consumers.

Philips has also incorporated its proprietary SmartContrast technology into the 190V1SB/00. This feature automatically adjusts the color and sharpness of images based on the displayed content, ensuring that users experience optimal visuals whether browsing the web, working on spreadsheets, or enjoying a movie.

For user comfort, the Philips 190V1SB/00 includes an integrated height-adjustable stand, allowing users to customize the monitor's position for better ergonomics. Additionally, the tiltable design enables users to find their perfect viewing angle, thus reducing strain during extended use.

In conclusion, the Philips 190V1SB/00 is a versatile and feature-rich monitor that combines performance, efficiency, and user comfort. Its advanced technologies and thoughtful design make it an ideal choice for anyone in need of a reliable display for work or entertainment. Whether for office tasks or gaming, this monitor provides an engaging and immersive experience that meets modern-day demands.
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