Vortex System 4 is the fourth version of the EKS Vortex operating system. It was released on August 20, 1991. Contents[show] History This article/section is empty. Please expand it. New features Block-UI look. Gallery This article/section is empty. Please expand it. See also This article/section is empty. Please expand it. This article is a stub. Please help this article by expanding or finishing it; if you have permission from the page owner. Additional information: None. Retrieved from "https://dreamfiction.fandom.com/wiki/Vortex_System_4?oldid=190327" Categories: Empty articles Article stubs Operating Systems Discontinued 1991 EKS Vortex EKS Fictional Operating Systems Fictional Operating System Versions Computer-related introductions in 1991 1991 software Software Fictional software Products introduced in 1991 Products discontinued in 2002 1990s EKS products Fictional products Products Products introduced in the 1990s Community content is available under CC-BY-SA unless otherwise noted.