47606
According to Jim Butterfield , this causes a speed reduction by a factor of five ; had 1540 compatibility not been a requirement , the disk interface would have been much faster .
 Jim Butterfield
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Jim Butterfield