What OS do you use or have you used.

Currently use windows and Mac OSX and Android for mobile

Linux Mint 13 LTS

I always only use Microsoft.

I've used Windows 95. 98, 98SE, XP home edition, Vista, and currently Windows 7 Home Premium....

Always used a Microsoft OS.

Currently using Windows 8 on my gaming rig. Mac OS X on my mac and iOS 5.11 (or sumthin') on my old iPod Touch and Android Jelly Bean or Ice Cream Sandwich on my tablet.

Used to use Ubuntu too, but that sh*t messed up my old rig. Installing drivers on any Linux distro is a bit of a task to say the least...

Oh but without a doubt Windows 8 (yes E-I-G-H-T) is my favourite of all time. My opinion.

Android on my smart phone, Windows 7 on the family computer and Ubuntu 12.04 on my brother's laptop. He somehow managed to delete Windows lol but it was Windows 8 so no one cared. xD

I'm currently on Windows 7 (**** you Windows 8), and for my tablet I'm on Android Jellybean.

I have used Ubuntu but I didn't like it enough to keep it around.

I am currently using Windows 8.1 on my main computer and Xubuntu on my netbook. I have used Windows XP, Vista, 7, 8, and Ubuntu.

Using Windows 7.

I'd use a Linux distro but the lack of support sucks.

Windows Vista and iOS.

Currently I have windows 8.1 (the only thing keeping attached to this excuse of an OS is my games), OSX, Kubuntu, iOS (phone), and android (tablet). I've also tried pc-bsd, freebsd, ubuntu, xubuntu, arch... basically Im stuck in a phase where i cant find the right *nix OS for me but Kubuntu seems to be the best so far.

I've used everything buy Unix, though the only Linux I've ever used is Ubuntu, so not sure if that really counts. Windows 8 (with Star8) is what I use mainly though

Currently on windows 7.

And not including computers we haven't owned, I've also used DOS Shell, win 3.11, 95, 98, and XP.

I've used Windows every version of Windows from 98 until now, OS X on Mac and on the Linux side I've used OpenSuse, Mint and Ubuntu. My daily driver is Ubuntu though, cannot stand Windows.

On the phone side I've used both iOS and Android, with my preference being 100% on Android.

All the OSes I have used? During my lifetime?

Let's see.......

At home:

AmigaOS/Workbench 1.2 to 2.1

(Mac) System 7, OS9, OSX

MS-DOS (from 2.1 up to 6.22)

Windows 2.1 to Windows 8.

OS2 Warp(only for a year)

Be (loved it)

Various Linux distros starting with Slackware 3.4 (1995)

OpenBSD - mainly for tinkering around with.

At work:

All the Windows OSes

HP (A)UX

Sun Solaris

Silicon Graphics IRIX or some other Unix - can't remember which one

Xenix

Redhat

Add:

Oh. I have an Android tablet too. Silly me. :D

I use Windows on my desktop and the Cinnamon edition of Linux Mint on my laptop.

Currently use Windows 8 on my desktop, Linux Ubuntu on my laptop and Android on my Htc one s.

I think almost all the OS in the Windows family. Want to get into a Linux OS in the near future.

Windows and Android.

@jun_aka_pekto: Impressive.

Be is definitely up there with usual OS names , never heard of it till now.

MS for PC and Android for phones/tablets.

Windows at home and OS X at school.

I have used the following:

Windows 95

Windows 98

Windows NT

Unknown Mac OS

Windows XP

Windows 7

Windows 8

Android

Ubuntu

I have had them all installed on my hardware and I currently utilize Android 4.12 and Windows 8.

Have windows 7 and linux mint for the moment

Been using windows my entire life.

I have used windows 98,xp,7 and 8.

I currently use windows 7, 8 and OSX Mountain Lion on my laptops. My phone is iOS.

I have previously used Vista, XP and Android.

Used to be an iOS user, now a proud user of Android device :P