dual core processor;

A dual core processor is a CPU with two separate cores on the same die, each with its own cache. It's the equivalent of getting two microprocessors in one.

In a single-core processor, the CPU is fed strings of instructions it must order, execute, then selectively store in its cache for quick retrieval. The situation is compounded when multi-tasking. In this case, the processor must switch back and forth between two or more sets of data streams and programs - this affects the CPU's performance.

In a dual core processor, each core handles incoming data strings simultaneously - this improves its efficiency and performance.