Can any one explain what "kernel" is and, if I have updated mid 2010 mbp with 2t ssd and 16g ram, what is the choice between 32 and 64 by default means? And, should I enable 64 by holding down 6 and 4 key during startup as process is irreversible ?
MacBook Pro 13″, macOS 10.13
Hi jester1908,
Thanks for contacting the Apple Support Communities!
We understand that you'd like to learn more about what a kernel is and the difference between 32-bit and 64-bit apps, correct?
First, this is a great resource which explains what a kernel is in more detail: Kernel Architecture Overview
You can learn more about 64-bit technology here: 32-bit app compatibility with macOS High Sierra 10.13.4 and later
We hope this helps.
Cheers!
7,1 Identifier and 32, 64 bit option to run applications
