All of Windows RT's versions

RAYDOS Era 1899-2010
Raydos 1 Beta (1899)

Raydos 1 (1900)

Raydos 2 (1910)

Raydos 2.2 (1912)

Raydos 3 (1920)

Raydos 4 (1930)

Raydos 5 (1940)

Raydos 5.3 (1943)

Raydos 6 (1960)

Raydos 7 (1970)

Raydos 8 (1980)

Windows RT Beta (1983)

Raysoft Era 1984-Now
Windows RT 1.0 (1984)

Windows RT 2.0 (1986)

Windows REX Test (1988)

Raydos 9 (1990)

Windows RT 3.0 (1990)

Windows RT 3.1 (1992)

Windows REX 3.11 (1993)

Windows RT bulemoution (1994)

Windows RT 95 (1995)

Windows RT 95 SE (1997)

Windows REX 4.0 (1997)

Windows RT 98 (1998)

Windows REX 5.0 (1999)

RAYDOS 10 (1999)

Windows RT 2000 (1999)

Windows RT ME (2000)

Windows RT XP (2001)

Windows RT Tera (2006)

Windows RT 7 (2009)

Raydos 11 (2010)

Windows RT 8 (2011)

Windows REX 6.0 (2012)

Windows RT 8.1 (2013)

Windows RT 10 (2015)

done
; )