I would recommend a Penium 3.
Depends on what processor you're using. Go to the manufacturer's site and find the product, it should tell you the socket that the processor requires. Any motherboard with that socket will be compatible
Not enough information.
in the processor it self it should say the make and model. like Intel Pentium 4 or AMD 64.
The graphics processor should already be in use if your driver is installed. if the driver is not installed then you can download and install it from the respective processor brand.
Currently the Intel i5 processor is the most famous processor being used in PCs and notebooks. You should look for a laptop with this processor, which will speed up everything you do.
There is no technological difference but the only difference should be how it is phrased
Yes, it should run on such processor.
Generally, a laptop processor should NEVER generate more heat than a desktop processor. That is because a laptop processor uses less power, hence the heat generated would be lesser.
The power supply should be disconnected first. Then comes the CPU cooler. Then the processor can be safely removed from the socket.
I do all the time with only a 1.30 GHz processor so you should be able to
yes the minimum spec is a GHz processor you should be fine.
"845G" is a chipset, not a processor. The chipset is actually a part of the motherboard, and should be advertised in it's specs.