378454
The co-founders started the company after selling Applied Optoelectronic Technology Corporation , a manufacturer of computer-aided test systems , to Hewlett-Packard .
 Corporation, Hewlett-Packard
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Corporation, Hewlett-Packard