Low Resolution: 40x48 pixels in 16 colors.Text mode is rarely used in GS programs since the OS, GS/OS, had a graphic desktop. The background and border can each be set to different colors. Text mode is monochrome but can be set to a specific color. Characters are formed by a 7x8 pixel matrix. The Apple IIGS also had all the graphics modes found on the Apple IIc. SVGA modes with 24-bit color could be added with an additional video card (see the Second Sight SVGA card at Sequential Systems at ). Such split modes were sometimes used in paint programs, where the menu bar was in 640x200 while the graphic was in 320x200. Part of the screen could be in 640x200 mode while another part could be in 20x200 resolution. Fill mode: for faster rendering of graphics, fill mode is a hardware mode in which an outline of a graphic can be drawn and the outline filled by a solid color without needing to draw in all the pixels.Ĭombinations and variations: the Apple IIGS supported scan line interrupts. This mode is widely used in productivity programs and also in Apple's Finder for the GS. The GS dithers the adjacent colors for 4x4=16 dithered colors. The odd columns can have a second palette of 4 pure colors. The even columns can have a palette of 4 pure colors out of a of a possible 4096. 640x200 with 16 dithered colors: in this mode, the pixels in the graphic screen are grouped into even and odd columns. 640x200 with 4 pure colors: this mode is bland and is not often used. This mode is often used for viewing graphics. 320x200 with 3200 colors: in this mode, the CPU is used to swap palettes into and out of video memory such that a separate 16 color palette can be used on each of the 200 scan lines for 3200 possible colors. This mode requires no CPU assistance and is often used in games. Each scan line can be assigned any one of these 16 palettes for a total of 256 possible colors. 320x200 with 256 colors: in this mode, the VGC is taking advantage of the fact that it has memory for 16 separate palettes. It had a lot of graphic modes : All modes used a 12-bit palette for 4096 colors. The Macintosh works around this by using software-based synthesis. Even today, the Macintosh does not have hardware synthesizers. Apple never again put a synthesizer chip in any computer. The Ensoniq chip in the Apple IIGS was a brilliant move by Apple, but it drew a lawsuit from Apple Records, the Beatles' record label. Prototypes leaked out and a user group that has one and wrote a series of articles about it. It had an 8Mhz 65C816, a built in SuperDrive, 2MB on the motherboard, and a hard drive. In one final gasp, the Apple II supporters at Apple designed the Apple IIGS Plus, code named "Mark Twain". The Apple IIGS disappeared from the market in 1992. If the computer had been introduced a year or two earlier, things might have been different. The total number of advertisements and commercials for the IIGS could probably be counted on one hand. Sadly, Apple wanted Macintosh to be its future. Sales were strong initially and the IIGS even outsold the black and white Macintosh units that were its contemporary. It was (and still is) a quantum leap for the Apple II line. The Apple IIGS was designed in response to the Amiga 1000 and Atari 520ST computers & could be considered a cross between the Macintosh & Apple II (naturally, it can't use Macintosh programs).
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