The microprocessor chip is the silicon chip within the CPU chip housing which features the semiconductor elements. The three most important parts of the microprocessor are the Control Unit (which handles instructions and regulates the data transfer), the Registers (which serve as storage locations and help keep track of any program in process), and the Arithmetic/Logic Unit (the ALU, which performs mathematical operations on data). Microtechnology has enabled processors to become more efficient at processing data. While the 8-bit processor was average only 15 years ago, recent microprocessors can process 32 bits of information simultaneously.