USB or Universal Serial Bus

Glossary

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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230w5 specifications

The Philips 230W5 is a standout monitor that embodies the blend of cutting-edge technology and elegant design, making it a compelling choice for both professional and personal use. Known for its superior display quality and ergonomic features, this monitor caters to various user needs, from graphic design to general computing tasks.

One of the most noteworthy characteristics of the Philips 230W5 is its 23-inch wide-screen display, which boasts a Full HD resolution of 1920 x 1080 pixels. This means users can expect sharpness and clarity that enhance the viewing experience, whether one is watching movies, playing games, or working on detailed projects. The monitor features an IPS (In-Plane Switching) panel, which provides wider viewing angles and more accurate colors compared to traditional TN panels. This ensures that the display looks vibrant and consistent from various angles, making it ideal for collaborative work environments.

The monitor is designed with Philips' SmartContrast technology, which dynamically adjusts the contrast ratio of the images being displayed. This results in deeper blacks and brighter whites, improving the overall visual quality, especially in darker scenes. Additionally, the PowerSensor technology is a remarkable feature that employs infrared detection to sense when the user is away from the monitor. It then automatically reduces the screen brightness to save energy, a blend of convenience and sustainability that appeals to environmentally-conscious users.

Ergonomics is another highlight of the Philips 230W5. The monitor comes equipped with height, tilt, and swivel adjustments, allowing users to customize their viewing experience to reduce strain during long hours of use. This is essential for professionals and gamers who are in front of the screen for extended periods.

Connectivity is also well-addressed, with multiple input options including HDMI, DisplayPort, and VGA, allowing for easy connection to various devices, from laptops to gaming consoles. The built-in speakers provide decent sound quality, further enhancing the multimedia experience without the need for additional external speakers.

In summary, the Philips 230W5 is more than just a monitor; it is a multifunctional device that combines impressive display technologies with user-centric features. Its Full HD IPS panel, SmartContrast, energy-saving capabilities, and ergonomic design make it a versatile choice for anyone seeking to upgrade their workstation or gaming setup without compromising on style or performance.