computer's link for iso
Link for Ubuntu http://www.ubuntu.com/download/desktop
Link for Windows 7 http://www.mydigitallife.info/download-windows-7-iso-official-32-bit-and-64-bit-direct-download-links/
Link for Windows XP https://skydrive.live.com
Link for Windows 7 http://www.mydigitallife.info/download-windows-7-iso-official-32-bit-and-64-bit-direct-download-links/
Link for Windows XP https://skydrive.live.com