Chips? Luxury! In the mid 1980s the ZX Spectrum only had a 3.5MHz Z80, a sound chip that could only beep, and synthesis had to be done in hand-optimised assembler! Uphill, both ways!<p><a href="https:&#x2F;&#x2F;youtu.be&#x2F;3qqfNgA8_OY?t=1m58s" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;3qqfNgA8_OY?t=1m58s</a>