104070
With the development of the VisiCalc application in 1979 , microcomputers broke out of the factory and began entering office suites in large quantities , but still through the back door .
 VisiCalc
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:
 VisiCalc