<p><span class="h-card" translate="no"><a href="https://toot.liw.fi/@liw" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>liw</span></a></span> 8-bit bytes (IBM/360 1964)</p><p>80 column displays (IBM punch cards 1928)</p><p>Telnet (1969)</p><p>Ansi escape sequences, standard on Linux today (started in 1965, although the first although that supported it, the VT-100 is slightly youngest than 50, being released in 1978).</p>