Glossary

USB eliminates "case angst" -- the fear of removing the computer case to install add-on peripherals. And 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 and provide robustness at 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 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;

file:///D/EDFU/crt_17_6/edoc/english/GLOSSARY/GLOSSARY.HTM (19 of 22)2005-04-08 ¤W¤È 11:27:42

Page 51
Image 51
Philips 107Q user manual Hub

107Q specifications

The Philips 107Q is a versatile and feature-rich monitor designed to meet the needs of both casual users and professionals alike. One of the standout characteristics of the 107Q is its 27-inch display, offering a Full HD resolution of 1920x1080. This ensures that users enjoy sharp and vibrant visuals, whether for gaming, multimedia, or productivity tasks. The monitor boasts an IPS panel, which enhances color reproduction and allows for wider viewing angles. This feature is particularly beneficial for collaborative work or for those who enjoy sharing their screen with others.

Another key technology incorporated into the Philips 107Q is the Adaptive Sync technology. This feature synchronizes the display's refresh rate with the graphics card's output, effectively reducing screen tearing and providing a smoother gaming experience. This is especially useful for fast-paced games, where quick reactions are crucial for success.

The design of the Philips 107Q is sleek and modern, featuring ultra-narrow bezels that maximize the screen real estate. This aesthetic not only looks appealing but also allows for a more immersive experience, especially when multiple monitors are used in tandem. The monitor is also height-adjustable, enabling users to customize their viewing ergonomics for enhanced comfort during extended usage.

Connectivity options are plentiful with the Philips 107Q, including HDMI and DisplayPort inputs, which provide versatility in connecting various devices. Additionally, the monitor includes built-in speakers, eliminating the need for external speakers for basic audio needs.

Energy efficiency is another point of emphasis for the Philips 107Q, as it is designed with power-saving technologies that reduce energy consumption without compromising performance. The monitor has received Energy Star certification, demonstrating its commitment to sustainability.

In terms of user-friendly features, the Philips 107Q includes Flicker-Free technology, which reduces eye strain during long hours of usage, and Low Blue Mode, which helps to minimize exposure to harmful blue light. This makes the monitor an excellent choice for those who spend significant time in front of a screen.

In summary, the Philips 107Q stands out with its combination of impressive display quality, advanced technologies, ergonomic design, and energy-efficient features, making it an excellent choice for anyone looking to enhance their computing experience.