Colorful displays

Article Abstract:

A buyer's guide to high-end color displays with calibration capabilities is presented. CRT-based monitors pose inherent color problems; complex electromagnets must control the scanning electron beams exciting phosphor dots. A calibrating display provides tight control of the electron beams to ensure that they converge perfectly for white and vary in strength to display different colors. They include colorimeters that attach to an on-screen target with a suction cup, take measurements and send the results through a serial or ADB cable to the PC, which provides feedback to the monitor in turn. Some less expensive display-calibration products work with ordinary non-calibrating displays and use colorimeters not to adjust the display's internal controls but by altering the color levels emerging from the graphics adapter. Key specifications include the CRT size, viewable image size, maximum resolution, dot pitch, horizontal scan rate and refresh rate. Other desirable features include viewing hoods and multiplatform support.

United States, Computer peripheral equipment, not elsewhere classified, Other Computer Peripheral Equipment Manufacturing, Computer Display Monitors, Purchasing, Buyers Guide, Hardware buyers' guide, Video monitors, Color monitors, Computer monitors, Color monitor, System selection

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Laserjet or Laserwriter? Base your hard decisions on the software

Article Abstract:

Hewlett-Packard's Laserjet and Apple Computer's Laserwriter dominate the laser printer market; selecting between them, or choosing another product, will depend on the needs of the user. The Laserwriter offers superior 300 dots-per-inch resolution for graphics applications and greater flexibility in using fonts, but the Laserjet offers higher speed and more disk-based fonts. There are more MSDOS business programs for the Laserjet than for the Laserwriter, and there are publishing programs, but there are also MSDOS programs that can use the Laserwriter. Macintosh users cannot use Laserjet fonts, but they have a wide range of programs that take full advantage of the Laserwriter's graphics and font capabilities; and there is Appletalk, which enables the Laserwriter to serve up to 31 Macs.

Product information, AAPL, Hewlett-Packard Co., HWP, Laser printers, Evaluation, Apple Inc., Comparison, Laser Printer, Hardware Selection, Applications, Performance, HP LaserJet (Laser printer), HP LaserJet Plus (Computer printer), Apple LaserWriter (Laser printer), Apple LaserWriter Plus (Computer printer)

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