Project Paradox

Project Paradox development started in 1945, and ended in 2021, it has multiple screens

1940s
By 1945, after ww2, the development started, there are no screens but to have multiple desks

1960s
Paradox Corp. entered a computer business in January 1967

Paradox Corp. has a first operating system named Paradox DOS

Paradox DOS Versions 0.01 until 0.09 was released between March 1968 to January 1975

Paradox DOS Versions
DOS Alpha, June 4 1966

DOS Beta, March 8 1967

Paradox DOS 0.01, March 17 1968

Paradox DOS 0.02, September 9 1968

Paradox DOS 0.03, June 4 1969

Paradox DOS 0.04, December 24, 1969

1970s
An early prototype of Paradox OS, March 8 1970

Paradox 73, was released on March 7 1973, was the first version of Paradox OS that is part of 19 xx series

Version 0.09 released on January 1975

Paradox OS went a major user interface redesign in July, September and December 1976-1978

First design was on July 1976, and was critically glitchy UI

Second design was on September 1977, and an early alpha version that was released on November 1977

Third design and was the final design was released for December 1978, along with an early alpha builds

Pre-1.0 (July 1979-December 1986)
Paradox Corp expanded its operations, giving a split so it would rival Linux

March 1980 - Version 0.55 was released, it adds new features

In March 1981, one year later after 0.55 was released, a fork named Paradox Server was released, based from version 0.72

May 1981, Version 0.71, June 1981, Version 0.72, September 1981, Version 0.72.1 or 0.721