A Central Processing Unit (CPU) is the primary component of a computer that acts as its "control center". It is also known as a processor or microprocessor. The CPU is responsible for executing instructions of a computer program, such as arithmetic, logic, controlling, and other operations. It interprets, processes, and executes instructions from the hardware and software programs running on the device. The CPU performs all types of data processing operations and controls the operation of all parts of the computer. It stores data, intermediate results, and instructions (program) . The CPU is located on a computers motherboard, which is the main circuit board inside a computer that connects all hardware components together. The CPU is responsible for doing all the work and performs every single action a computer does and executes programs. The CPU is made up of thousands of microscopic transistors that control the flow of electricity through the integrated circuits. The CPU can contain at least one processing core, and many contain multiple cores. Running multiple processor units simultaneously allows for multi-tasking and can dramatically improve performance.