TF! OS Pre-1.0 (1975) TF! OS 1.0 (1997) TF! OS Club Dorothee (1982) TF! OS Club Dorothee^1 (1985) TF! OS 2.0 (1990) TF! OS Slim (1994) TF! OS 20 Years Edition (1995) TF! OS 1.0 End of Support (2000) TF! OS 100.0 (2119) Windows Uh!!!!!!!!! (2997) TF! OS 1.0 Embedded 3002 (3002) TF! OS Almost Final (8383829290 ATE) TF! OS Final (4000000001 EEE+++) TF! OS oo (ooth of No Year) TF! OS X_X (X_Xth of No Year) TF! OS X_X End of Support (_th of no year) TF! OS True End of Existence (_th of 1975) TF! OS True End of Life (_th of 2075) TF! OS True End of Existence 2 (_th of 3090) TF! OS X_X 2 (_th of 1 EEE) TF! OS Club Dorothee X_X (_th of 4000000001 EEE+++)
