If your computer is a Pentium 4 2.4 Ghz or later it's a socket 478.
LGA1155
LGA1155
The first Pentium processors (Pentium 60 - 66). A Pentium OverDrive processor is also available for it.
Unfortunately, no. AMD uses the Pin Grid Array socket system, where the processor has many pins that fit into holes on the motherboard. Intel, on the other hand, uses what is called the Land Grid Array socket system, where there are many pins on the motherboard's processor socket that connect with contacts on the processor. They're completely reverse systems, and attempting to use one with the other will result in severe, unrepairable damage to both the processor and the motherboard. Please do not attempt to use any Intel processor with a motherboard that uses AMD processors, or vice-versa.
yes
The earliest models of the AMD K7 / Athlon used Slot A, before migrating to Socket A.
True
yes
ZIF is used on almost all modern processors. You need to find out which socket it uses.
No, you can't. Gigabyte-GA990FXA-UD3 uses AM3 socket and supports AMD processors only. While 2600K is Intel processor and it uses socket LGA1155.
Sockets have to do with Processors. Each processor fits in a certain socket. Put the wrong processor in the wrong socket and it won't work and will damage you PC. Pins have to do with RAM or PCI-E Components. RAM modules have a certain amount of pins that will fit in a certain DIMM. PCI-E also uses this term to find out if it will fit in your PCI-E.
all modern computers. Everything from desktops to cell phones.