Wiederhold@SRI-AI.ARPA (12/20/83)
From: Gio <Wiederhold@SRI-AI.ARPA> I obtained the following information in order to help me make a purchase decision: Planttronics - PC+ products was in Frederick MD now in Milpitas CA 4 colors High res. (640 pixels/line) 16 colors med.res. (320 p/l) 200 lines per screen ( ie. single frame, as IBM ) list $560 32 K on board , not usable otherwise, parallel printer port. Tecmar Graphics master - Cleveland OH 16 colors High res 4 colors extrahigh res (720p/l, 480 lines) Extrahigh res is prob beyond most monitors, and the extra lines may not be visible). 400 lines per screen. Comments on flickering even when not scrolling were not supported by the one user we talked to. Has 128K, which is usable when the card is not otherwise used, when it is used for low resolution it might be usable by memory-disk simulation techniques. Also simulates IBM monochrome and produces in that mode crisper characters. $690 list and in relatively short supply - being purchased by people who are upgrading the IBM monochrome card since it can also drive the IBM monochrome display. External NTSC sync for mixing available. Note you get what you store: IBM 640 x 200 x 1color = 320 x 200 x 2^2 colors - 128Kbits = 16K bytes Plantronics 640 x 200 x 2^2 = 320 x 200 x 4^2 - 256Kbits - 32K bytes Tecmar 640 x 400 x 4^2 = othermodes = 1Mbits = 128K bytes. gio -------