Nothing; it's a brand name. Intel chose it because they had lost cases where they attempted to assert brand name ownership of "286", "386", "486" and related usages like "80x86" - courts decided, repeatedly, that these were generic terms for a type of architecture and not a product name (which would have been protected).
Intel wanted this kind of protection because there would be nothing to match a Pentium, on release, for a long time (on the PC platform) and they did not want other manufacturers (e.g. AMD, Cyrix, VIA) being able to later claim that their products were "Pentiums", as had happened with the previous Intel releases, and so capitalize on Intel's marketing.
before pentium what was the pc name
The Pentium 4 got it's name because it was the next series of Intel's flagship CPU line after the Pentium III.
Probably the Pentium Dual-Core, as it is the most recent processor to bear the Pentium name.
The Pentium brand has been relegated to low-cost / budget processors. Creating a processor called the "Pentium 5" would confuse consumers, who now expect a Pentium to be a cheaper processor, while the name would imply that it was a flagship successor to the Pentium 4.
Pentium Duo Quad, Pentium core duo, Pentium D, Xeon, Itanium, Pentium M, Pentium 4, Celeron, Pentium 3, Pentium 2, Pentium Pro, 486, 386, 286.
Nothing, a Pentium Processor, or any other processor for that matter, is merely a brand name for different microprocessors.
There are version of Intel Pentium one through four as well as Intel Pentium Pro, Intel Pentium D, Intel Pentium M, Pentium (2009), and Pentium Duel Core.
A Pentium 3 Processor is found in many different systems and accomplishes many things. A Pentium processor is the name of the Intel company's central processing unit (CPU) hardware.
If you mean "Pentium" then its Intel if you really do mean 'Petium' then I have no idea.
The Pentium III was a processor found in many computers, both desktop and laptop, in 1999 and early 2000s.
No. The Pentium predates the Pentium D by more than a decade.
The first Pentium computer.