Computer programming is the process of designing and building an executable computer program to achieve a specific computer result or to perform a specific task. Programming includes tasks such as: parsing, generating algorithms, determining algorithm accuracy and resource consumption, and implementing algorithms in a selected programming language (commonly referred to as coding). The source code of the program is written in one or more languages ​​that are understandable to programmers, rather than machine code, which is executed directly by the CPU. The purpose of programming is to find a series of instructions that will automate the performance of a task (which can be as complex as an operating system) on a computer, often to solve a specific problem. Thus, professional programming often requires expertise in many different topics, including knowledge of the application domain, specialized algorithms, and formal logic.