Here's one direction in which this technology could evolve:
By the year 2021, all disk drives have been banned because they consume too much electricity.
All SSDs have also been banned, because all storage is now being handled by "The Cloud(tm)" nicknamed "Nebulous" (not "Cumulus").
Operating Systems will boot from Nebulous, after the User inserts his/her government-issued encrypted thumb drive, with just enough space to store the requisite encryption key, and no more.
Users will not qualify for their "thumb keys" unless they have reached Level 10 on all Single Shooter ("SS") real-time synthetic urban warfare simulations, with performance strictly measured and evaluated by robotic agents, whose synaptic maps have been pre-approved by the newly organized DHUA (see below).
During operation, all "files" will be stored directly in RAM, or passed over 100 Gigabit Ethernet connections, some wired and most wireless.
Motherboards will no longer have SATA or SAS ports, because local storage is a thing of the past.
Yes, your motherboards will utilize PCI-Express 10.0 bus bandwidths optimized for 6- and 8- video card configurations (a user option).
Many such Users will opt for "surround video" systems, which enclose them within a circle of high resolution video monitors: the only way to operate this setup is to lower oneself into the center with a special crane, also issued by Nebulous and leased by the User at market rates (you may remember the obsolete concept of "supply and demand").
By this time, all storage controller companies will have been bankrupted by strict enforcement of these new policy restrictions, imposed by the new organized DHUA -- Das Homeland Uber Alles.
A foretaste of this New World Odor can be viewed in the upcoming film entitled "Iron Sky" (are you laughing yet?)
I'm not.
MRFS