Fixed-point DSP and algorithm implementation

What is a processor?
Refers to a system that accepts a program as input, prepares it for execution and executes the process defined with data to produce results. Can be a short term for a microprocessor or central processing unit (CPU) in computer.

What is an algorithm?
An algorithm is a list of well-defined instructions for completing a task, such as computing an average value. Starting from an initial state, the instructions describe a computation that proceeds through a well-defined, though not necessarily deterministic, series of successive states, eventually terminating in a final ending state.