[dayglored]

> Writing error. Copiously uses the acronym ARM without ever explaining what ARM is.

Ah, so. Right you are.

ARM is an alternative CPU architecture. Completely separate and very different from Intel's x86/x64 CPU architecture.

ARM CPUs power most of the world's devices. Notably, Apple uses a version of ARM in its iPhone/iPad line.

And with a little special sauce stirred in, ARM CPUs can run Intel-based software, too.

[dayglored]

To give you an idea of how ubiquitous the ARM CPUs are these days, over 100,000,000,000 ARM CPUs were produced as of last year (2017). That's 100 BILLION.

They're everywhere.

https://en.wikipedia.org/wiki/ARM_architecture

[bigbob]

I am thankful for Google because it is the greatest tool for self education of all time.