All Device Operating Systems List
List of all device operating systems listed in DeviceBeast. Get to know detailed operating system information for Google Android, Apple iOS, Apple iPadOS, Apple MacOS, Harmony OS and more

Symbian EPOC Release 3

Symbian EPOC Release 4

Symbian EPOC Release 5

Symbian EPOC Release 5u

Symbian OS 6.0 Series 80 1st Edtion

Symbian OS 6.1 Series 60 1st Edition

Symbian OS 8.1 Series 60 2nd Edition 2.8

Symbian OS 8.0 Series 60 2nd Edition 2.6

Symbian OS 7.0 Series 60 2nd Edition

Symbian OS 9.1 Series 60 3rd Edition

GeoWorks GEOS 1.0

GeoWorks GEOS Ensemble 2.0

GeoWorks GEOS V3.0

Symbian OS 7.0 Series 80 2nd Edtion

Symbian OS 9.2 Series 60 3rd Edition

Microsoft MS-DOS 1.1

Microsoft MS-DOS 2.0

Microsoft MS-DOS 3.0

Microsoft MS-DOS 3.3

Microsoft MS-DOS 3.2

Palm Computing Palm OS 3.5

Palm Computing Palm OS 4.0

Microsoft MS-DOS 3.22

Microsoft MS-DOS 4.0

Palm Computing Palm OS 4.1

Microsoft MS-DOS 5.0

PalmSource Palm OS 5

Microsoft MS-DOS 6.0

PalmSource Palm OS 5.2

PalmSource Palm OS 5.4

Microsoft MS-DOS 6.2

Microsoft MS-DOS 6.22

MontaVista Linux Consumer Electronics Edition 3.0

Trolltech Qtopia 1.6.0

Microsoft MS-DOS 7.0

Microsoft MS-DOS 7.1

Trolltech Qtopia 1.7.0

Microsoft MS-DOS 8.0

Trolltech Qtopia 2.0.0 Phone Edition
