What was the graphics mode on the Apple II?
The Lo-Res graphics mode offered built-in commands to clear the screen, change the drawing color, plot individual pixels, plot horizontal lines, and plot vertical lines. There was also a “SCRN” function to extract the color stored in any pixel, one lacking in the other modes.
What kind of video output does an Apple II have?
All Apple II machines featured an RCA jack providing a rough NTSC, PAL, or SECAM composite video output (on non-NTSC machines before the Apple IIe this output is black-and-white only). This enabled the computer to be connected to any composite video monitor conforming to the same standard for which the machine was configured.
What are the interleave factors for Apple II graphics?
Apple’s text and graphics modes are based on two different interleave factors of 8:1 and 64:1. A second peculiarity of Apple II graphics—the so-called “color fringes”—is yet another by-product of Wozniak’s design.
What kind of display does the Apple II have?
The Apple II video output is really a monochrome display based upon the bit patterns in the video memory (or pixels). These pixels are combined in quadrature with the colorburst signal to be interpreted as color by a composite video display. High resolution provides two pixels per colorburst cycle,…
How to find low resolution graphics on Apple II?
Low-Resolution (Lo-Res) graphics Number — name Y Pb (rel.) Pr (rel.) 0 — black 0 0 0 1 — magenta 0.25 0 0.5 2 — dark blue 0.25 0.5 0 3 — purple 0.5 1 1
What kind of Monitor did the Apple II GS have?
In the II GS it was an output for an analog RGB monitor specially designed for the II GS . Numerous add-on video display cards were available for the Apple II series, such as the Apple 80-Column Text Card. There were PAL color cards which enabled color output on early PAL machines.