Simplify the following text for a Grade 10 native English-speaking person.
Original: Alan Mathison Turing , OBE , FRS ( ; 23 June 1912 â `` 7 June 1954 ) , was an English mathematician , logician , cryptanalyst and computer scientist .
Simplified: Alan Mathison Turing ( June 23 , 1912 - June 7 , 1954 ) was an English mathematician and computer scientist .