This depends on the motherboard / chipset, not the processor. Most Pentium 4s of that speed / era would probably only support DDR RAM.
Intel.
Pentium Duo Quad, Pentium core duo, Pentium D, Xeon, Itanium, Pentium M, Pentium 4, Celeron, Pentium 3, Pentium 2, Pentium Pro, 486, 386, 286.
Yes, but it must be with one of the same type. EG, you can swap an Intel Pentium 3 1.5GHz with a Intel Pentium 3 2GHz, but not with an Intel Pentium 4 2GHz. Also, it must be the same socket type.
Yes
Pentium 4 with HT technology runs at the highest speed.
Before the Pentium CPU was introduced, the most common cooling mechanism inside a computer was a simple fan that was typically attached to the power supply.
Pentium 4
About 1 Gram
The Pentium 4 got it's name because it was the next series of Intel's flagship CPU line after the Pentium III.
Pentium D was the first dual-core cpu.
An obsolete type of CPU chip, popular about 10-12 years ago (late 1990s). They replaced Pentium IIs, and were replaced by Pentium IVs.
2.