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<ol class="chapter"><li class="chapter-item affix "><a href="title-page.html">The Element-Call book</a></li><li class="chapter-item affix "><a href="foreword.html" class="active">Foreword</a></li><li class="chapter-item affix "><a href="ch00-00-introduction.html">Introduction</a></li><li class="chapter-item affix "><li class="part-title">Getting started</li><li class="chapter-item "><a href="ch01-00-getting-started.html"><strong aria-hidden="true">1.</strong> Getting Started</a><a class="toggle"><div></div></a></li><li><ol class="section"><li class="chapter-item "><a href="ch01-01-building-blocks.html"><strong aria-hidden="true">1.1.</strong> The building blocks</a></li><li class="chapter-item "><a href="ch01-02-element-call-hello.html"><strong aria-hidden="true">1.2.</strong> Hello Element-Call!</a></li></ol></li><li class="chapter-item "><a href="ch02-00-installation.html"><strong aria-hidden="true">2.</strong> Installation</a></li><li class="chapter-item "><a href="ch09-00-element-call-examples.html"><strong aria-hidden="true">3.</strong> Element-Call Examples</a><a class="toggle"><div></div></a></li><li><ol class="section"><li class="chapter-item "><a href="ch09-01-element-call-hello.html"><strong aria-hidden="true">3.1.</strong> ELement-Call-Hello!</a></li></ol></li><li class="chapter-item "><a href="appendix-00.html"><strong aria-hidden="true">4.</strong> Appendix</a><a class="toggle"><div></div></a></li><li><ol class="section"><li class="chapter-item "><a href="appendix-01-keywords.html"><strong aria-hidden="true">4.1.</strong> A - Keywords</a></li><li class="chapter-item "><a href="appendix-02-operators.html"><strong aria-hidden="true">4.2.</strong> B - Operators and Symbols</a></li><li class="chapter-item "><a href="appendix-03-derivable-traits.html"><strong aria-hidden="true">4.3.</strong> C - Derivable Traits</a></li><li class="chapter-item "><a href="appendix-04-translation.html"><strong aria-hidden="true">4.4.</strong> D - Translations of the Book</a></li></ol></li></ol>
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<h1 id="foreword"><a class="header" href="#foreword">Foreword</a></h1>
<p>The history of computer-aided communication, which supports not only
text video and sound goes back to the 1990s. From from todays
perspective, it seems almost grotesque what prices had to be paid for
the had to be paid for the hardware developed at that time. Not only
for the quality and quality of encoded data streams, new formats had
to be invented (CIF (CIF, QCIF). The development of Codex was in its
infancy. infancy. There was a lack of
standardization. Interoperability and and the use of the Internet were
at best distant goals. People were working on very
application-specific solutions and approaches that had the potential
for affordable components for mass production. As an example, the
pioneering manufacturer <a href="https://en.wikipedia.org/wiki/Parallax_Graphics"><code>Parallax Graphics Inc.</code></a>. Founded in 1982 by two graduates of Cornell
University, the company focused on the marketing of the marketing of
<code>high end</code> graphics cards, including for the then popular university
environment at the time. These cards initially cost around €25,000
and supplied ASICS and a codex implemented in implemented in hardware,
which could realize resolutions of up to 1280x1024 pixels could be
realized.</p>
<p>Every commercially available cell phone, tablet, notebook and desktop
PCs currently deliver graphics card performance that can render 2k,
even 4k pixels can render. Encoding and decoding solutions are
decoding solutions have been standardized internationally, which have
significantly reduced the bandwidths to be transmitted and thus and
thus enable billions of uses on the Internet use on the
Internet. One-to-one video telephony has been established for years.
established for years. And everyone will remember the radical upheaval
in the professional use of video conferencing solutions that the COVID
pandemic brought with it in 2022.</p>
<p>Today, the use of video conferencing solutions is ubiquitous. In the
working world, proprietary solutions are often used, to implement work
processes regardless of location. Examples include the products from
the manufacturers <a href="https://en.wikipedia.org/wiki/Cisco"><code>CISCO-&gt;(Webex)</code></a>,
<a href="https://de.wikipedia.org/wiki/Microsoft_Teams"><code>Microsoft-&gt;(Skype,Teams)</code></a>, <a href="https://www.hp.com/de-de/poly.html"><code>HP-&gt;(Poly)</code></a>
and <a href="https://en.wikipedia.org/wiki/Zoom_(software)"><code>Zoom-&gt;(Zoom)</code></a> are listed. But also free software such as
<a href="https://bigbluebutton.org/"><code>BigBlueButton</code></a>, <a href="https://jitsi.org/"><code>Jitsi</code></a> or
<a href="https://nextcloud-talk.readthedocs.io/en/latest/"><code>Nextcloud-&gt;(Talk)</code></a> are enjoying worldwide distribution.</p>
<p>With <code>Element-Call</code> the Matrix ecosystems gains a new approach that
fully embraces the potential of MatrixRTC. Think of participents in
decentralized domains that are to able to dynamicly create and manage
multipoint meetings in an efficiant manner. An Open-Source, that
enables fee choice of any Matrix complient Client. What progress.</p>
<p>— Ralf Zerres</p>
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