<Tr> <Td> </Td> <Td> This article may require cleanup to meet Wikipedia's quality standards . No cleanup reason has been specified . Please help improve this article if you can . (March 2012) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> This article needs to be updated . Please update this article to reflect recent events or newly available information . (September 2013) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs to be updated . Please update this article to reflect recent events or newly available information . (September 2013) </Td> </Tr> <Table> <Tr> <Th> History of computing </Th> </Tr> <Tr> <Th> Hardware </Th> </Tr> <Tr> <Td> <Ul> <Li> Hardware before 1960 </Li> <Li> Hardware 1960s to present </Li> <Li> Hardware in Soviet Bloc countries </Li> </Ul> </Td> </Tr> <Tr> <Th> Software </Th> </Tr> <Tr> <Td> <Ul> <Li> Software </Li> <Li> Unix </Li> <Li> Free software and open - source software </Li> </Ul> </Td> </Tr> <Tr> <Th> Computer science </Th> </Tr> <Tr> <Td> <Ul> <Li> Artificial intelligence </Li> <Li> Compiler construction </Li> <Li> Computer science </Li> <Li> Operating systems </Li> <Li> Programming languages </Li> <Li> Prominent pioneers </Li> <Li> Software engineering </Li> </Ul> </Td> </Tr> <Tr> <Th> Modern concepts </Th> </Tr> <Tr> <Td> <Ul> <Li> General - purpose CPUs </Li> <Li> Graphical user interface </Li> <Li> Internet </Li> <Li> Laptops </Li> <Li> Personal computers </Li> <Li> Video games </Li> <Li> World Wide Web </Li> </Ul> </Td> </Tr> <Tr> <Th> Timeline of computing </Th> </Tr> <Tr> <Td> <Ul> <Li> before 1950 </Li> <Li> 1950--1979 </Li> <Li> 1980--1989 </Li> <Li> 1990--1999 </Li> <Li> 2000--2009 </Li> <Li> 2010--2019 </Li> <Li> more timelines...</Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table>

When did the birth of computer science occur