Final answer:
The notable event in informatics history that occurred between 1940-1960 was the development and commercialization of the first digital computers. This event marked a major milestone in the history of informatics, as it paved the way for the development of more advanced and accessible computers.
Step-by-step explanation:
One notable event in informatics history that occurred between 1940-1960 was the development and commercialization of the first digital computers. Prior to this period, computers were large and expensive, mainly used for government and business applications. However, by the early 1960s, the costs of computers had decreased significantly, leading to their increased use in government agencies, businesses, and universities.
An example of a notable computer from this time is the UNIVAC I, which was delivered to the US Census Bureau in 1951. This computer, along with others developed by companies like IBM, played a significant role in the growth and popularity of mainframe computers.
This event marked a major milestone in the history of informatics, as it paved the way for the development of more advanced and accessible computers in the following decades.