53
The second incarnation was a much smaller unit the width of two 5 " floppy drives stacked on top of each other , and the third incarnation looked like a flattened Apple with a built-in keyboard .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None