Axis Communications AB is a Swedish manufacturer of network cameras for the physical security and video surveillance industries. It operates in the market segments transport, infrastructure, retail, banking, education, government and industrial. Axis Communications originally started out as an IT company selling print servers. It then applied its knowledge in networks and embedded computing to develop network cameras for the security industry. Most of its products contain an embedded computer with some flash memory and run a custom version of Linux. One of its major breakthroughs in technology was the development of JFFS, which extended the lifetime of the devices' flash memory. Axis Communications was founded in 1984 by Martin Gren, Mikael Karlsson and Keith Bloodworth in Lund, Sweden. The company developed and sold protocol converters and printer interfaces for the connection of PC printers in IBM mainframe and mini-computer environments. By the end of the 1980s, Axis Communications had opened its first U.S. sales office in Boston, Massachusetts and in the early 1990s started shifting its focus away from IBM mainframes towards networking and the TCP/IP protocol.