how to update a leopard mac os x v 10.5.8 for security issues?
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 1 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version (system): 1.20f4
Serial Number (system)
Hardware UUID: 00000000-0000-1000-8000-001B63B4F7CD
Can't update anything on my mac through the Apple Store or use Google Chrome, Firefox or Safari will not even work. I can't get Google drive to work at all.
help please??