Massachusetts Institute of Technology has released the source code of MULTICS, a decades-old OS and precursor to UNIX and other modern day operating systems.
MULTICS (or Multiplexed Information and Computing Service), began its incarnation in 1964 as a joint project between M.I.T., General Electric and Bell Labs. The operating system was developed for the GE-645 mainframe, a 36-bit general purpose time-share system built for continuous operation. The idea was to provide a computing utility analogous to electricity and telephone services.
It was one of the first operating systems to introduce concepts such as a hierarchical file system and dynamic linking. It was also the first to use the modern standard of per-process stacks in the kernel, with a separate stack for each security ring.
Perhaps some enterprising programmer can write an emulator for it for the PSP or something.
Paul Mah is a writer and blogger who lives in Singapore, where he has worked for a number of years in various capacities within the IT industry. Paul enjoys tinkering with tech gadgets, smartphones, and networking devices.