Beta Disk Interface

<h2 id="clones">Clones</h2>
<p>This interface was popular for its simplicity, and the Beta 128 Disk Interface was <a href="/facts/Clone_(computing)/qd7EcVNT">cloned</a> all around the <a href="/facts/USSR/m7wWsPto">USSR</a>. The first known USSR clones were ones produced by НПВО "Вариант" (<i>NPVO "Variant"</i>, <a href="/facts/Leningrad/pNuCBxaM">Leningrad</a>) in 1989.<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> 
</p><p>Beta 128 schematics are included in various <a href="/facts/List_of_ZX_Spectrum_clones/gBj9Ce2c">Soviet/Russian ZX Spectrum clones</a>, but some variants only support two drives. Phase correction of the drive data signal is also implemented differently.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a><a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a>
</p>

<p>Between 2018 and 2021, Beta Disk clones were produced in the <a href="/facts/Czech_Republic/vJYLD66Q">Czech Republic</a>, with the names such as Beta Disk 128C, 128X and 128 mini.
</p>
<h2 id="operating-systems-support">Operating systems support</h2>

<ul><li><a href="/facts/TR-DOS/IfPQm9fl">TR-DOS</a></li>
<li><a href="/facts/IS-DOS/CqmRxoTd">iS-DOS</a></li>
<li><a href="/facts/CP/M/n5rTgXdC">CP/M</a> (various hack versions)</li>
<li>DNA OS</li></ul>
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/DISCiPLE/Up94HA9g">DISCiPLE</a></li></ul>

<h2 id="external-links">External links</h2>

Wikimedia Commons has media related to Beta Disk Interface.

<ul><li><a href="http://trd.speccy.cz/">Virtual TR-DOS</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>"Disk interface takes waiting out of wanting". Sinclair User. March 1984. p. 34. <a href="https://worldofspectrum.org/archive/magazines/sinclair-user/24/0/1984/3/0#34" target="_blank">https://worldofspectrum.org/archive/magazines/sinclair-user/24/0/1984/3/0#34</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>"More memory less labour". Sinclair User. January 1985. p. 73. <a href="https://worldofspectrum.org/archive/magazines/pages/sinclair-user/34/73" target="_blank">https://worldofspectrum.org/archive/magazines/pages/sinclair-user/34/73</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>"Beta 128 Disk Interface". Spectrum Computing - ZX Spectrum games, software and hardware. Retrieved 2025-02-02. <a href="https://spectrumcomputing.co.uk/entry/1000033" target="_blank">https://spectrumcomputing.co.uk/entry/1000033</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>Extreme, Mac Buster (1999). "Tr-Dos v5.xx - programmer's manual". Archived from the original on 2014-04-09. Retrieved 2013-12-16. <a href="https://web.archive.org/web/20140409113112/http://k1.dyndns.org/Vintage/Sinclair/82/Peripherials/Disc%20Interfaces/Beta%20128%20Disc%20Interface%2C%20TRDOS%20%28Technology%20Research%29/TRDOS/TR-DOS%20Programming.txt" target="_blank">https://web.archive.org/web/20140409113112/http://k1.dyndns.org/Vintage/Sinclair/82/Peripherials/Disc%20Interfaces/Beta%20128%20Disc%20Interface%2C%20TRDOS%20%28Technology%20Research%29/TRDOS/TR-DOS%20Programming.txt</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
<li id="fn:5"><p>Sinclair ZX Spectrum. Beta Disc / TR-DOS. Аппаратные средства. Стандартный интерфейс дисковода. - С.-Петербург, 1994 <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li>
<li id="fn:6"><p>Рюмик С. Контроллер дисководов. Канал записи / Радиолюбитель. Ваш компьютер, 1998, NN10-12; 1999, N1 <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li>
<li id="fn:7"><p>Рюмик С. Контроллер дисководов. Канал чтения / Радиолюбитель. Ваш компьютер, 1999, N4-8 <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li>
</ol>

Beta Disk Interface open-in-new

Beta Disk Interface