| Operating System | Developed by | First Release | Latest version name & Comments |
|---|
| macOS | Apple Inc.Used in Apple Macintosh Desktops | 2001 | macOS High Sierra
2017 |
| iOS | Apple Inc.Used in iPhone, iPod Touch, iPad | 2007 | iOS 11
2017 |
| Lisa OS | Apple Inc.Used in Apple Lisa | 1983 | 1986, Production closed |
| Chrome OS | Google
Used in Laptops especially in Chromebook | 2011 | 2017
Open-source version- Chromium OS
|
| Android | Google
Used in Smartphones, Tablets, Smart TV | 2008 | Oreo 8.0
2017 |
| MS-DOS | Microsoft with IBM | 1981 | 2000, Production Closed |
| Windows | Microsoft
Used in PC | 1985 | Windows 10
2015
Other imp. previous version-
98, ME, XP, Vista, 7 & 8 |
| Windows Phone | Microsoft
Used in smartphones | 2010 | Windows 10 Mobile
2017 |
| NetWare | Novell Inc.
Used in PC as network OS
Replaced by Open Enterprise Server | 1983 | NetWare 6.5SP8
2010, Production Closed |
| BlackBerry OS | BlackBerry Limited
Used in BlackBerry Smartphones | 1999 | BlackBerry 10
2013, Production Closed |
| Symbian OS | Symbian Ltd.
Used in Mobiles By Nokia, Samsung, Motorola, Sony Ericsson, etc. | 1998 | 2008, Production Closed |
| Firefox OS | Mozilla and external contributors | 2013 | 2015, Production Closed |
| Unix | Bell Labs | 1969 | Generally family of OS
Many different versions |
| Fedora | Fedora supported community & Red Hat
Used in PC, Servers & Cloud services | 2003 | Fedora 26
2017 |
| Unbuntu | Canonical Ltd., Ubuntu community
Used in PC & Enterprise Servers | 2004 | Ubuntu 17.10 Artful Aardvark
2017 |
| CentOS | The CentOS project & Red Hat | 2004 | CentOS 7.8
2017 |
