The read latency is about as slow as the earliest RAM ever used -- tubes of liquid mercury used as acoustic delay lines. (150 us vs. 222 us (microseconds)) htt

The read latency is about as slow as the earliest RAM ever used -- tubes of liquid mercury used as acoustic delay lines. (150 us vs. 222 us (microseconds)) https://en.wikipedia.org/wiki/Delay_line_memory#Mercury_delay_lines https://en.wikipedia.org/wiki/Delay_line_memory#Mercury_dela...