This is not the first time the President has been criticized for taking a vacation during an urgent situation. During Obama's first term in 2009, Obama addressed the Underwear Bomber situation on television from Hawaii. On the other hand, in 2012 Obama flew back to the mainland midway through his vacation in order to deal with the fiscal cliff negotiations. This year critics cited the recent Sony hack attack as a reason for the president to delay his trip.
SSD (solid-state drive) A solid-state drive (SSD) is a nonvolatile storage device that stores persistent data on solid-state flash memory. Solid-state drives actually aren't hard drives in the traditional sense of the term, as there are no moving parts involved.
SSHD is a more precise term than the more general term Hybrid Drive, which has previously been used to describe both SSHD devices as well non-integrated combinations of Solid State Drives (SSD) and Hard Disk Drives (HDD).In the two forms of hybrid storage technologies (dual drive hybrid solutions, and SSHDs), the goal is to combine HDD and flash-based storage technologies to provide a balance of improved performance and high-capacity storage availability.