http://gamerstech.weebly.com/installing-a-processorcpu.html
dual core
Multiprocessing is accomplished when a processor contains moer than one ALU.
Four independent cores into a single package composed of a single IC. A dual-core processor contains two cores, and a quad-core processor contains four cores.
cpu
The 3DS contains an ARM11 MPCore dual-core processor, and also a single ARM9 processor for backwards compatability with the original DS games.
Because of the processor it contains
A processor housing that contains more than one processor is referred to as a "multi-processor system" or "multiprocessing system." This configuration allows multiple CPUs to work together to improve performance and efficiency by sharing the computational load. Multi-processor systems are commonly used in servers and high-performance computing environments.
independent cores into a single package composed of a single IC. A dual-core processor contains two cores, and a quad-core processor contains four cores.
alu
It contains the processing device.
The i5 processor contains a very descent HD4000 graphics processor that allows gaming. It is not for hardcore gaming. An additional graphics card makes the laptop a good gaming one...go for it !!
An integrated circuit contains multiple diodes and transistors on silicon. A processor performs the calculations in a computer.