Fujitsu, a very famous company of the world (Known as Fuji Tsushinki Manufacturing Corporation) at that time, develop the first commercial relay-based computer in 1956.
This machine is currently placed in Ikeda Memorial Hall, Numazu Factory of Fujitsu and is believed to be world’s oldest computer in working condition.
This computer which was an enhanced form of the original FACOM 100 and is named FACOM 128B, and was developed in 1958 while still operational.
The computer have been went through several updates and upgrades to increase its capacity and speed and therefore it was considered highly reliable. The computer was not only used by Universities but was shipped to other industries for commercial purposes.
Astonishingly, this computer occupies 700 feet of floor space and has less power than a calculator. Fujitsu mission is to keep it operational till 2016 so that it completes it’s 60th birthday..