That will depend on the motherboard and BIOS. If the board supports a 100 MHz Front Side Bus and has the proper microcode updates, a 1.1 GHz Pentium III (using a Slotket) is possible. If the board is limited to only 66 MHz, a 450 MHz Pentium II, or a 500 MHz Celeron is about all you can do. It may be possible to install a Pentium III even then, but it will run underclocked and likely not run much faster than the 500 MHz Celeron.
Not enough information.
The Intel Pentium 4 3.0 GHz processor is a single core processor, but if you'd like to upgrade to dual core, have a look at the Intel Pentium 4 531 3.0GHz Processor Upgrade RH008AV.
That would require purchasing a new motherboard, processor, and power supply.
There is probably no need to reinstall Windows after a processor upgrade, and the performance increase between the two said processors is probably not worth purchasing a newer version of Windows for.
There are no "ports" on a Pentium processor.
Nobody, since there is no Pentium 5 processor.
There is no "Pentium R" processor. Knowing this, the biggest difference is that the Pentium III exists and the other does not.
The first Pentium processors (Pentium 60 - 66). A Pentium OverDrive processor is also available for it.
pentium mmx
A Pentium 4 processor, and a motherboard that supports it.
Probably the Pentium Dual-Core, as it is the most recent processor to bear the Pentium name.
Yes, the 1.7 with 2mb L2 cache will work great, but it means a complete disassembly of the laptop in order to get at the cpu socket.