NEW COMPUTER?
I OWN A MAC PC 21.5" SCREEN 2011 MACOS 10.13.6. I CAN NOT UPDATE TO VENTURA AS IT STATES THE COMPUTER IS NOT COMPATIBLE. DO I NEED TO PURCHASE A NEW MAC PC?
iMac 21.5″
10.13.6 is the last possible upgrade. See the following from Identify your iMac model - Apple Support
iMac (21.5-inch, Mid 2011)
Model Identifier: iMac12,1
Part Number: MC309xx/A, MC812xx/A
Latest compatible operating system: macOS High Sierra 10.13.6
You would need a new computer if you want to upgrade to Ventura (or to any of the 4 upgrades between High Sierra and Ventura)
If you want to continue using the 2011 iMac, it would be a good idea for security reasons to use a 3rd party browser that supports running its current version on High Sierra rather than running the outdated Safari. One option is Chrome. See: https://www.google.com/chrome/
