The first operating system was introduced in the early 1950’s, it was called GMOS and was created by General Motors for IBM’s machine the 701.

What was the first operating system in the world?

The first operating system used for real work was GM-NAA I/O, produced in 1956 by General Motors’ Research division for its IBM 704. Most other early operating systems for IBM mainframes were also produced by customers.

Who created the first computer operating system?

‘A real inventor’: UW’s Gary Kildall, father of the PC operating system, honored for key work.