Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: Notesfiles $Revision: 1.6.2.16 $; site prism.UUCP Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!decvax!cca!prism!matt From: matt@prism.UUCP Newsgroups: net.micro.pc Subject: New color card: 256 colors on a PC! Message-ID: <7700013@prism.UUCP> Date: Wed, 18-Sep-85 11:34:00 EDT Article-I.D.: prism.7700013 Posted: Wed Sep 18 11:34:00 1985 Date-Received: Sun, 22-Sep-85 23:59:45 EDT Lines: 32 Nf-ID: #N:prism:7700013:000:1580 Nf-From: prism!matt Sep 18 11:34:00 1985 Reproduced without permission from INFOWORLD (Sept. 18, 9815): A new graphics board from a division of AT&T lets standard IBM color displays produce images with as many as 256 colors simultaneously, 32 times the existing limit. The $695 VDAD (visual display adapter/digital) graphics board ...overcomes the inherent limit in the current digital RGB monitor, which normally can display only eight colors in two intensities at a time. Engineers at the [AT&T Electronic Photography and Imaging] center added the Bell Labs techinique [for pulse width modulation] to their existing VDA board, thus creating a digital version with the same 32,768 color palatte and the capability to display a selection of 256 colors from that palatte on the [standard IBM PC color monitor] screen, with a resolution of 256 by 200 pixels. Although the VDAD board has low resolution, the capability to select any combination of 256 colors from a large palatte gives the resulting picture a realistic quality. Hmmm... 256 out of 32K colors on a standard PC color display? Sounds interesting. I wonder if they're working on a higher resolution version that would run on the EGS (256 by 350 pixels, perhaps?) ----------------------------------------------------------------------------- Matt Landau {cca, ihnp4, inmet, mit-eddie, wjh12}... Mirror Systems, Inc. ...mirror!prism!matt Cambridge, MA (617) 661-0777 -----------------------------------------------------------------------------