Similar to Symbian_OS
Smalight OS
Symbian Foundation
Symbian Foundation
T-Kernel
T-Kernel
TOPPERS/ASPカーネル
TOPPERS/JSPカーネル
VxWorks
VxWorks
Windows Phone
Windows PhoneXiaomi HyperOS
Xiaomi HyperOS
Zephyr (オペレーティングシステム)
Zephyr (operating system)
ColorOS
ColorOS
HarmonyOS
HarmonyOS
ThreadX
ThreadX
Sailfish OS
Sailfish OS
LynxOS
LynxOS
アバンダンウェア
AbandonwareAmazon Storywriter
Amazon Storywriter
AppleWorks
AppleWorks
C-Store
C-Store
CERN httpd
CERN httpd
Display PostScript
Display PostScript
DVD Decrypter
DVD Decrypter
DVD Shrink
DVD Shrink
Eudora
Eudora (email client)
F-Spot
F-SpotFirestarter
Firestarter (firewall)HijackThis
HijackThis
IWeb
IWeb
Lotus 1-2-3
Lotus 1-2-3