Not really, the vast majority of computers ever built had only one CPU (i.e. core) and thus functioned perfectly well without a multicore processor.
The Motherboard i think or maybe the processor.
yes
Whether or not you get any benefit from a dual core processor over a single core processor depends on what operating system and what programs you are running. Newer operating systems (Windows 7, Mac OSX) do use multicore processors. Also, using multiple programs on a computer will better utilize a multicore processor. In short, yes it can make a difference for today's average user.
processor, ram, motherboard
motherboard memorey processor harddrive
Multiprocessor, as opposed to Multicore, which is more than 1 core within a single physical CPU.
The main component of modern computer chips is Silicon.
A processor is a component within the comp. that co-ordinates the hardware and software.
the control unit in the cpu or the processor
Help transfer data in de component in de computer
There are more than 3 components in a computer. An example of 3 components that every computer has: Motherboard, processor, memory.
Seeing as the processor is what determines the performance of you computer I would definitely say the processor. A nice monitor is a great accessory to any computer but great performance is a must.