Can i upgrade to OSX Lion?

Question

This is what i have on my iMac:
Hardware Overview:
  Model Name:    iMac
  Model Identifier:    iMac5,1
  Processor Name:    Intel Core 2 Duo
  Processor Speed:    2.16 GHz
  Number Of Processors:    1
  Total Number Of Cores:    2
  L2 Cache:    4 MB
  Memory:    1 GB
  Bus Speed:    667 MHz
  Boot ROM Version:    IM51.0090.B09
  SMC Version (system):    1.9f4
  Serial Number (system):    QP71511KVUW
  Hardware UUID:    00000000-0000-1000-8000-0017F2D680A4
Cant remember if it was purchased late 2005 or early 2006. Iam guessing i cant upgrade to the latest version?

Answer 1

Depends upon the exact model you have:
Upgrading to Yosemite
You can upgrade to Yosemite from Lion or directly from Snow Leopard. Yosemite can be downloaded from the Mac App Store for FREE.
Upgrading to Yosemite
To upgrade to Yosemite you must have Snow Leopard 10.6.8 or Lion installed. Download Yosemite from the App Store. Sign in using your Apple ID. Yosemite is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
    OS X Mavericks/Yosemite - System Requirements
      Macs that can be upgraded to OS X Yosemite
         1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later
         7. Xserve (Early 2009) - Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
     Are my applications compatible?
         See App Compatibility Table - RoaringApps.