Every computerized function in today's devices is implemented using one or multiple microprocessors, meaning a computer processor (central processing unit, or CPU) usually contained in a single integrated circuit (IC). The microprocessor comprises at least the arithmetic logic unit (ALU) and control circuitry, but logically also registers, and input/output (I/O) banks, in addition to more advanced features commonly tailored to a specific product category (wearables, low power sensors, mixed signal, ...) or market (consumer, medical, automotive, ...).
At this point in history, almost all microprocessors are found in embedded systems. Even though people are likely to possess a computer, laptop, and smartphone, maybe even a tablet, the number of embedded microprocessors in a given household far dwarfs the number of general-purpose microprocessors...
