In 1949 CSIRAC sprung to life in a lab in Sydney, Australia. It was a very early stored program computer. All machines of the era were unique. But CSIRAC, well, it was very unique indeed.

Selected Sources:

 https://cis.unimelb.edu.au/about/csirac/music/reconstruction - The Music of CSIRAC

https://sci-hub.se/10.1109/MAHC.1984.10014 - Pearcy and Beard on CSIRAC