

They used to use analog computers to solve differential equations, back when every transistor was expensive (relays and tubes even more so) and clock rates were measured in kilohertz. There’s no practical purpose for them now.
In cases of number theory, and RSA cryptography, you need even more precision. They combine multiple integers together to get 4096-bit precision.
If you’re asking about the 24-bit ADC, I think that’s usually high-end audio recording.



Three years ago, I replaced a failing SATA SSD in my personal laptop with a new SATA SSD. That laptop had plenty of power, and I’d still be using it today if the keyboard still worked, and the screen hinges weren’t cracked. It had no NVME slots.