@LAH3385 That was the short version :grinning:
Per-processor OS licensing has been based on the total number of physical chips in use, more than what is in each physical chip.
But the operating system sees the total number of logical processors that are available. This number is based on the number of physical chips, but also on the number of CPUs in each chip, the number of cores in each CPU, and the number of thread handlers in each core.
The board, socket, physical chip, die, CPU, and cores have separate definitions that can sometimes be confused by marketing.
Multithreading can offer benefits by moving specific responsibilities from the OS to the processor, but only for specific uses that can take advantage of that. In the past, operating systems generally weren't designed to take full advantage of multithreading.
I'm not sure that shorter version will leave you any better off, though.. I imagine it'd be hard to continue learning a language through reading about IT, too. :grinning: If you can work through the definitions and examples @scottalanmiller laid out, each section follows straight from the explanation before it.