I am running Linux Mint 17 on my Laptop. Through the System Info GUI program, I found that the processor is Inter Core i3-2328M. When checking the System Monitor GUI program, it shows **four** CPUs numbered from 1 to 4. The [specs](http://ark.intel.com/products/70927/Intel-Core-i3-2328M-Processor-3M-Cache-2_20-GHz#@specifications) say there are only **two** cores. What is the reason for the mismatch between the specs and the System Monitor?

![System Info](https://i.stack.imgur.com/B4cPW.png)

![system monitor](https://i.stack.imgur.com/RWCxw.png)