Some of the earliest memories were storage loops on a bigger scale. Mercury Delay Lines were a type of memory that relied on sound waves being cycled through t

Some of the earliest memories were storage loops on a bigger scale. Mercury Delay Lines were a type of memory that relied on sound waves being cycled through tubes of mercury. https://en.wikipedia.org/wiki/Delay_line_memory#Mercury_delay_lines https://en.wikipedia.org/wiki/Delay_line_memory#Mercury_dela... Very interesting technology.