Blake Patterson<p>This is one of the most incredible retrocomputing things I've seen. </p><p>The GRAFEX-32 video board for the Apple II, which offers 640x400 pixel, interlaced monochrome video output with drawing commands executed in hardware on its 2MHz NEC 7220. </p><p>But, if you chain four of the boards together, you get 16 colors (one bit per board). </p><p>This is quite possibly the first example of gfx SLI one could point to. Amazing! Strong work, <span class="h-card" translate="no"><a href="https://mastodon.social/@Jrobj" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>Jrobj</span></a></span> </p><p><a href="https://oldbytes.space/tags/AppleII" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AppleII</span></a> <a href="https://oldbytes.space/tags/vintagecomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vintagecomputing</span></a> <a href="https://oldbytes.space/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputing</span></a> <a href="https://oldbytes.space/tags/vintagetech" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vintagetech</span></a> <a href="https://oldbytes.space/tags/graphics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>graphics</span></a> <a href="https://oldbytes.space/tags/GPU" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GPU</span></a> <a href="https://oldbytes.space/tags/SLI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SLI</span></a> <a href="https://oldbytes.space/tags/Grafex" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Grafex</span></a> <a href="https://oldbytes.space/tags/hardware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hardware</span></a> <a href="https://oldbytes.space/tags/retrocomputers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputers</span></a> <a href="https://oldbytes.space/tags/Apple" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Apple</span></a> <a href="https://oldbytes.space/tags/vintageapple" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vintageapple</span></a> <a href="https://oldbytes.space/tags/photo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photo</span></a> </p><p><a href="https://mastodon.social/@Jrobj/114046381501033997" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mastodon.social/@Jrobj/1140463</span><span class="invisible">81501033997</span></a></p>