Please find below the technical specifications for OIV 4.0

Platform Memory Processor Speed Operating System Java
PC 512MB required1GB recommended 1.5GHz required3GHz recommended Windows Vista
Windows 8, Windows 10
5+
Mac OS X 256MB required1GB recommended 800 MHz required1.2 GHz recommended 10.7 (Lion)
10.8 (Mountain Lion)
10.9 (Mavericks)
10.10 (Yosemite)
5+

OIV is not compatible with Chromebooks.

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The OIV installation file includes Java 6. Machines with 32-bit newer versions of Java will not be asked to install version 6, unless the computer has a 64-bit version.

If you have installed and are running OS Sierra version 10.12, you will need to install Legacy Java 6 to launch and use OIV. If you are not alerted to this when opening OIV, you can find the download here: https://support.apple.com/kb/DL1572?locale=en_US