World ▁War ▁II ▁am ph ib ious ▁war fare ▁vessels ▁of ▁the ▁United ▁States ▁Category : Sh ips ▁built ▁in ▁Jefferson ville , ▁Indiana ▁Category : 1 9 4 3 ▁ships ▁Category : L ST - 1 - class ▁tank ▁landing ▁ships ▁of ▁the ▁United ▁States ▁Navy <0x0A> </s> ▁In ▁computing , ▁ ▁is ▁the ▁key ▁combination ▁of ▁the ▁control ▁key ▁and ▁a ▁key ▁usually ▁l abeled ▁" x " ▁( lower - case ▁letter ▁ex ), ▁typically ▁used ▁to ▁cut ▁selected ▁text ▁and ▁save ▁it ▁to ▁the ▁clip board ▁ready ▁to ▁paste ▁elsewhere . ▁ ▁Convention ally , ▁the ▁key ▁combination ▁is ▁produced ▁by ▁holding ▁down ▁ ▁and ▁ ▁simultaneously . ▁ ▁To ▁avoid ▁having ▁to ▁press ▁multiple ▁keys ▁simultaneously , ▁the ▁key ▁combination ▁is , ▁on ▁some ▁systems , ▁entered ▁by ▁first ▁pushing ▁the ▁control ▁key ▁and ▁then ▁the ▁X ▁key . ▁ ▁Text ▁editing ▁In ▁many ▁software ▁applications ▁on ▁Windows ▁and ▁the ▁X ▁Window ▁System ▁ ▁can ▁be ▁used ▁to ▁cut ▁highlight ed ▁mutable ▁text ▁to ▁the ▁clip board . ▁ ▁On ▁Mac ▁OS ▁X ▁has ▁an ▁analog ous ▁function . ▁The ▁key ▁combination ▁was ▁one ▁of ▁a ▁hand ful ▁of ▁keyboard ▁sequences ▁chosen ▁by ▁the ▁program ▁design ers ▁at ▁X ero x ▁P AR C ▁to ▁control ▁text ▁editing . ▁ ▁For ▁historical ▁reasons , ▁the ▁control ▁character ▁C AN ▁may ▁be ▁referred ▁to ▁as ▁. ▁ ▁Inter action ▁style ▁In ▁computer ▁science , ▁this ▁style ▁of ▁interaction ▁is ▁referred ▁to ▁as ▁indirect ▁manip ulation , ▁a ▁human –