[StuartBell]

I have Mac mini with Mountain Lion which is running very slow. I want to update to Mavericks (after its release) but have doubt that it will my my Mac more slower.

Storage: 320 GB
Memory: 2 GB

What to do and how should I prepare for the new OS X.

[Alli]

Definitely upgrade your RAM. 2GB isn't enough to move a snail across the road today.

[meashishnd]

whats minimum hardware require for upgrade Mavericks ?? which is compatible devices for that ? is work with 2gbram 128hdd old model ?

[warcraftWidow]

Check apple.com for exact models.

But I believe just about anything that runs Mountain Lion will run Mavericks.

[Peter Cohen]

Upgrade your RAM, and before you do anything else, back up your hard drive.

If your Mac is the model I'm thinking of, you should be able to upgrade it to 8GB, which will be more than sufficient for Mavericks. What's more, it'll give you a decent boost in Mountain Lion, too. I'm assuming your Mac is a 2010-era model - you can tell us which one it is by going to the Apple menu, selecting About This Mac and then clicking on the More Info... button.