Integral

Integral is a Operating system by Vehlwer in 1983 it is the Frist Computer With GUI as SDE.

Versions
Integral 1 (1983)

Integral 2 (1986)

Integral 3 (1988)

Integral 3.1 (1991)

Integral 4 (1994)

Integral 5 (1997)

Integral 6 (1999)

Integral 7 (2002)

Integral 8 (2007)

Integral 9 (2011)

Integral X (2014)

Integral XI (2016)

Integral XII (2019)

About SDE
TBA.