sentences:  Novell sold the product line off to Caldera on July 23, 1996, after it approached Novell looking for a DOS operating system to bundle with its OpenLinux distribution,
  
  Marc Perkel claimed to have had inspired Novell in February 1991 to buy Digital Research and develop something he envisioned as "NovOS".Novell had actually bought Digital Research in July 1991 with a view to using DR's product line as a lever in their comprehensive strategy to break the Microsoft monopoly.