“Programs must be written for people to read, and only incidentally for
machines to execute.”
— Harold Abelson and Gerald Jay Sussman
Computer programming or coding is the composition of sequences of
instructions, called programs, that computers can follow to perform tasks.
It involves designing and implementing algorithms, step-by-step
specifications of procedures, by writing code in one or more programming
languages. Programmers typically use high-level programming languages that
are more easily intelligible to humans than machine code, which is
directly executed by the central processing unit. Proficient programming
usually requires expertise in several different subjects, including
knowledge of the application domain, details of programming languages and
generic code libraries, specialized algorithms, and formal logic.
