Radiation therapy, vasectomy, and injections for hemorrhoids can also cause blood. Physical trauma to the sex organs after pelvic fracture, injury to the testicles, excessively rigorous sexual activity or masturbation, or other injury can cause blood in the semen.
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.
A 24th century Starfleet issue PADD.  PADD  is an acronym for Personal Access Display Device, a hand-held computer interface, used as early as the 22nd century and well into the 24th century.