I have read a Wikipedia article on the Poly-1 and its use in Rotorua Boys High School where I was a teacher, and was seconded by Progeni Systems to develop software for NZ schools, with Professor John Tiffin as Supervisor, and when Perce Harpham was in his heyday. There is a citation to a Bits & Bytes article ‘Polys at Rotorua BHS’ that says August 1981, yet, according to this site, the magazine did not appear till 1982. Can you please check for the right edition date, and provide a link so someone can update the Wikipedia page?