Operating systems

1. Mobile Operating systems

1.1. iOS

1.1.1. iOS 9

1.1.2. iOS 8

1.1.3. iOS 7

1.1.4. iOS 6

1.1.5. ...

1.2. Android

1.2.1. Marshmallow (6.0)

1.2.2. Lollipop (5.0–5.1.1)

1.2.3. KitKat (4.4–4.4.4)

1.2.4. Jelly Bean (4.1–4.3.1)

1.2.5. Ice Cream Sandwich (4.0–4.0.4)

2. General

2.1. piece of software that is needed to run the programs

2.2. divided on those for compuer and for mobile

3. Computer Operating systems

3.1. Linux

3.1.1. Ubuntu

3.1.2. Debian

3.1.3. Linux Mint

3.1.4. Fedora

3.2. Mac OS X

3.2.1. 64-bit

3.2.1.1. El Capitan (10.11)

3.2.1.2. Yosemite (10.10)

3.2.1.3. Mavericks (10.9)

3.2.1.4. Mountain Lion (10.8)

3.2.2. 32-bit

3.2.2.1. Snow Leopard (10.6)

3.2.2.2. Leopard (10.5)

3.2.2.3. Tiger (10.4)

3.3. Microsoft Windows

3.3.1. Windows 10

3.3.2. Windows 8

3.3.3. Windows 7

3.3.4. Windows Vista

3.3.5. Windows XP