Model 109

{{short description|Series}}

The Model 109, or Number 109, was a series of mainframe computers designed and built in the People's Republic of China, starting in 1964.{{cite book|last1=Ling |first1=Zhijun |translator=Martha Avery |title=The Lenovo affair: the growth of China's computer giant and its takeover of IBM-PC |publisher=John Wiley & Sons |location=Singapore |year=2005 |isbn=978-0-470-82193-0 |page=[https://books.google.com/books?id=Mg7TdU9E3d0C&pg=PA13 13] |chapter=Introduction |url=https://books.google.com/books?id=Mg7TdU9E3d0C |access-date=2009-09-16}}

• First Model 109, created in 1964, used vacuum tubes
• The Model 109-B, China's first transistor computer was created in 1965.{{cite web|title=Scientific and technological achievements |url=http://www.ict.ac.cn/english/scientific/channel/list_4.shtml |archive-url=https://web.archive.org/web/20080930054741/http://www.ict.ac.cn/english/scientific/channel/list_4.shtml |work=Institute of Computing Technology |publisher=Chinese Academy of Science |access-date=16 September 2009 |url-status=dead |archive-date=September 30, 2008 }}
• The Model 109-C followed in 1967, and was used for 15 years.

Those were followed by the Number 111, their first integrated circuit computer, in 1971.