fraggle<p>The DEC Rainbow 100, released in 1982, had graphics capabilities that weren't well documented in the official manuals. While most users ran it in monochrome mode, the Rainbow supported a color graphics card that could output RGB signals, but its proprietary DB15 connector and sync-on-green signal made it incompatible with standard monitors. Hackers and enthusiasts discovered you could access additional graphics modes by directly manipulating the hardware registers. The discovery came from reverse-engineering enthusiasts who noticed the advanced capabilities hidden behind compatibility issues. Some of the best Rainbow software used these enhanced modes, creating visuals that many users never knew were possible.<br><a href="https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/tags/decrainbow" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>decrainbow</span></a> <a href="https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/tags/hiddengraphics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hiddengraphics</span></a> <a href="https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputing</span></a> <a href="https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>reverseengineering</span></a> <a href="https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/tags/vintagecomputers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vintagecomputers</span></a></p>