Unless you have a site license, all of Apple's OSes are single CPU
licensed.
as a hardware guy, i take exception to this comment. I have a dual
CPU machine and only need 1 license for it.
people keep incorrectly use "CPU" for "computer" or "box"
a CPU is a Central Processing Unit, in other words, the core of a
computer.
a MPU is a Micro Processor Unit, can mean either a CPU, math
coprocessor, or a computer
a MCU is a Micro Controller Unit, a programmed CPU with built-in
ROM to provide some function
