The Dulmont Magnum was an early laptop computer designed and marketed by Dulmison Pty Ltd in Australia in the early 1980s. The Magnum was also known internationally as the Kookaburra, and was sold from 1982 to 1986. The company found itself undercapitalized as it sought to enter the international market and faced increased competition from other laptops. It was taken over twice, with Dulmont eventually taken over by Time Office Computers (Manufacturing) Pty.