The "max operating temperature" of the original Pentium is 85°C. While it could theoretically run hotter than this, if it got much hotter, it would malfunction, and likely destroy both itself and the motherboard.
There were a few laptops that used Pentium 4s. However, Pentium 4s generated too much heat and drew too much power for them to be practical.
The first Pentium Is required a voltage of 5 volts.
no, but as their electronics are squeezed into a much more confined space they are more likely to have more "hot spots" than desktops.
A Pentium 4 processor is more advanced because it is faster and able to do much more complex calculations. It will, however, be superseded by a more advanced processor eventually.
Much faster. I cannot say exactly how much faster is it, but at least 5-6 times.
If you have an older Socket 478 Pentium 4, the cooler will not fit properly. If you have one of the later LGA775 P4s, it should work, as Pentium Ds actually output more heat than a Pentium 4. But a cooler only rated for, say, a Core 2 Duo, without the Pentium 4 being taken into account, would not work, since Core 2s do not generate as much heat under full load.
The Pentium D is essentially a rebranded and double-cored version of the Pentium 4. The Core 2 Duo is a much more efficient and powerful processor.
Possibly. "Celeron" doesn't refer to any particular processor. They are cost-reduced versions of the Intel Pentium II, Pentium III, Pentium 4, Pentium M, and Core 2 Duo. Assuming that your Celeron is based on a processor that is faster than the Pentium III, you shouldn't have any problems. If yours is based on the Pentium III, check the clock speed. A 1.2 GHz Celeron, for instance, is probably fast enough for a game that requires a 1 GHz Pentium III.Other factors, such as the graphics card of your system, may also be important.
It depends, but usually Intel is better. Older AMD processors (compared against the early Pentium 4) were much faster, however.
Processor: Intel Pentium 4 1.3 GHz or AMD Athlon XP 1500
It should be fine. Before someone says its based on old Pentium technology, it isn't. The new Intel Pentium Dual Core processors are based on the Core 2 Duo core architecture (Merom-2M). However it doesnt share the same amount of cache as the Core 2 Duo laptop versions have. Although I have one for my new laptop which I use for basic work each day. I have a proper desktop PC which I use to play games and such. But expect the same technology and enhancements you see on the Core 2 Duo to be on the Pentium Dual-Core.
On the Pentium II, the L2 cache is integrated into the processor packaging, rather than on the motherboard. This allows the L2 to be accessed much faster, and improving overall performance.