Earlier quoted context omitted.
I don't know if they're on HN yet, but there's a generation for which "writing to disk" has nothing to do with disks of anything.
Depends on when you want to define "nothing to do with disk" as. M.2 was introduced in 2013 which would make them 9 years old by now, but if we look at Samsung's 2006 PATA SSD (with 32GiB!), then they'd be 17 and could well be on here.
> In geometry, a disk (also spelled disc) is the region in a plane bounded by a circle. (wikipedia)
So you wouldn't find those in an SSD, it would have to be a spinning disk sort of deal.