▁to ▁carrying ▁ 2 5 5   ru pe es ▁( the ▁currency ▁of ▁the ▁game ) ▁at ▁any ▁given ▁time , ▁and ▁the ▁video ▁game ▁Pac - Man ▁fam ously ▁has ▁a ▁kill ▁screen ▁at ▁level   2 5 6 . ▁ ▁Pow ers ▁of ▁two ▁are ▁often ▁used ▁to ▁measure ▁computer ▁memory . ▁ ▁A ▁byte ▁is ▁now ▁considered ▁eight ▁bits ▁( an ▁oct et , ▁resulting ▁in ▁the ▁possibility ▁of ▁ 2 5 6 ▁values ▁( 2 8 ). ▁ ▁( The ▁term ▁byte ▁once ▁meant ▁( and ▁in ▁some ▁cases , ▁still ▁means ) ▁a ▁collection ▁of ▁bits , ▁typically ▁of ▁ 5 ▁to ▁ 3 2 ▁bits , ▁rather ▁than ▁only ▁an ▁ 8 - bit ▁unit .) ▁ ▁The ▁prefix ▁kil o , ▁in ▁conj unction ▁with ▁byte , ▁may ▁be , ▁and ▁has ▁tradition ally ▁been , ▁used , ▁to ▁mean ▁ 1 , 0 2 4 ▁( 2 1 0 ). ▁However , ▁in ▁general , ▁the ▁term ▁kil o ▁has ▁been ▁used ▁in ▁the ▁International ▁System ▁of ▁Units ▁to ▁mean ▁ 1 , 0 0 0 ▁( 1 0 3 ). ▁Binary ▁prefix es ▁have ▁been ▁standard ized , ▁such ▁as ▁k ib i   ( K i ) ▁meaning ▁ 1 , 0 2 4 . ▁Near ly ▁all ▁processor ▁registers ▁have ▁sizes ▁that ▁are ▁powers ▁of ▁two , ▁ 3 2 ▁or ▁ 6 4 ▁being ▁very ▁common . ▁ ▁Pow ers ▁of ▁two ▁occur ▁in ▁a ▁range ▁of ▁other ▁places ▁as