HP P1120 Horizontal Sync Specs

• Hewlett-Packard manufactures desktop and laptop computers, printers, PDAs, and monitors. The HP P1120 computer monitor offers a full-color graphic interface and a customizable display experience. The horizontal sync, or horizontal scan frequency, is "the number of lines illuminated on a video screen in one second," according to the PC Magazine encyclopedia.

Resolution

• The HP P1120 features a maximum of 1800-by-1400 pixels on the screen at any time, producing a high-quality and vibrant picture in standard resolution. The picture refreshes at a rate of 80Hz, which makes for very little lag while watching high-speed video playback or loading graphics sequences. The computer display is a 21-inch full-definition screen with 19.8 inches of viewable image and an anti-glare coating to minimize reflection of light from ambient sources.

Screen Type

• The HP P1120 monitor is a cathode-ray tube. This technology was the standard before liquid-crystal displays and plasma screens. The CRT monitor works by shooting red, green and blue electron guns down a vacuum tube with magnetic sides. The processed electrons appear on the screen as an image. CRT technology does not produce a progressive scan, high-definition quality image, but still produces higher contrast and deeper blacks than any other monitor technology. The HP P1120 has added Sony's Trinitron aperture grille technology. which further smoothes the image and allows for a corner-to-corner picture. The CRT monitor is also larger and takes up more desk space than a flat-screen LCD monitor because of the necessary vacuum tube.

Image Control

• The HP P1120 monitor features a number of image controls that users can access directly from the monitor's front panel and that do not require an interface with the computer. The front panel controls color temperature, display vertical placement, display horizontal placement, contrast and brightness.

Power

• The HP P1120 monitor is equipped with the Video Electronics Standards Association, or VESA, power management system. Because of this, the monitor will power down nonessential parts when not in use and eventually go into hibernation. Users can plug the HP P1120 into any Video Graphics Array port and get an immediate picture without installation software.