An Intel Core i3 processor is generally the least expensive and lowest performing processor in Intel's "i" family of processors. The Core i3 provides enough power for most everyday computing tasks, such as Internet browsing and word processing.
A computer's processor is a small chip in a computer that receives input and provides the appropriate output from applications running on the system. The number 3 in the chip name does not indicate the number of processing cores, but rather it represents the processor's speed relative to Intel's Core i5 and Core i7 processors. The Intel Core i3 processor is actually a dual-core processor.