Glossary

See rotation function.

Trapezoid distortion

See Geometrical distortion.

TTL signal

A TTL (Transistor-transistor-logic) signal is a digital signal level for controlling the screen colors. With TTL driving, the red, green and blue signals can only be switched on or off or provided with an intensity signal. A TTL-driven monitor can thus display a maximum of 64 colors. Video standards such as MDA, CGA and EGA are based on TTL level.

RETURN TO TOP OF THE PAGE

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 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

file:///D/EDFU/LF3/lf3manual/english/GLOSSARY/GLOSSARY.HTM (15 of 18) [2002/9/2 ?? 04:15:34]

Page 47
Image 47
Philips 107F user manual Trapezoid distortion, TTL signal, USB or Universal Serial Bus

107F specifications

The Philips 107F is a well-regarded monitor that has made its mark in the realm of computer displays due to its blend of performance and reliability. This 17-inch CRT monitor is designed primarily for consumer and professional use, offering a stable and crisp visual experience.

One of the standout features of the Philips 107F is its refresh rate, which is capable of handling up to 85Hz. This high refresh rate contributes to a smoother viewing experience, significantly reducing flicker and eye strain during prolonged usage. The monitor is equipped with a 1280 x 1024 resolution, ensuring that images and text are displayed with clarity and precision.

The Philips 107F utilizes advanced technology in its cathode ray tube design, facilitating a wide viewing angle. This feature enables users to view the screen from different positions without significant color distortion or loss of detail. The tube’s design also results in deeper blacks and brighter colors, enhancing the overall image quality.

In terms of connectivity, the Philips 107F comes with a standard VGA input, making it compatible with a wide array of graphic cards and devices. This versatility allows users to integrate the monitor seamlessly into different setups, whether for gaming, office work, or graphic design tasks.

Another important characteristic of the Philips 107F is its ergonomic design. The monitor is adjustable for height, tilt, and swivel, allowing users to find an optimal viewing position. This adjustability not only enhances comfort but also promotes better posture during use, which is especially beneficial for those spending long hours in front of the screen.

Furthermore, the Philips 107F incorporates energy-saving technology, which helps reduce power consumption without compromising performance. This environmentally conscious design feature aligns with the growing focus on sustainability in technology.

In summary, the Philips 107F combines a range of high-quality features and technologies, making it a compelling choice for users seeking a reliable and versatile monitor. With its solid performance, ergonomic adjustments, and commitment to energy efficiency, the Philips 107F continues to be a favored option in the monitor market. Its legacy reflects Philips' dedication to producing user-friendly display solutions that meet diverse needs.