What does computational mean?
"Computational" is an adjective describing anything that involves computation — that is, the systematic processing of information through calculation or algorithmic procedures. In contemporary English it appears almost exclusively in technical and academic contexts: a scientist might speak of "computational biology," a physicist of "computational modeling," and a programmer of a system's "computational cost." The word carries two closely related senses: it can refer specifically to techniques performed with computers, as in computational linguistics, or more broadly to calculation itself, whether carried out by machine or by hand — a distinction that echoes the word's history, since before electronic computers existed, human "computers" performed vast amounts of numerical work manually. Because of this technical character, "computational" conveys precision, rigor, and modernity; it signals that a task is being approached quantitatively rather than intuitively or experimentally alone. It pairs naturally with fields (computational neuroscience), resources (computational power), and problems (computational complexity), making it an essential term for anyone reading about science, mathematics, or technology today.
Relating to or involving the use of computers.
"Computational models predicted the storm's path more accurately than older methods."
Relating to calculation or the process of computing, especially in a mathematical sense.
"The proof requires considerable computational effort."
Before there were electronic computers, 'computational' already described work done by human 'computers' — people hired to crunch numbers by hand.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of computational
"Computational" derives from "computation," which comes from the Latin "computare" (or "computatum"), meaning "to count up" or "to reckon" — formed from "com-" ("together") plus "putare" ("to reckon, estimate"). The adjective form arose alongside the noun and gained enormous currency in the twentieth century, when electronic computers made large-scale automated calculation possible and entire disciplines reorganized themselves around "computational" approaches. It shares its root with "compute," "computer," and "computation," all ultimately tracing back to the same Latin verb of reckoning.
How computational is actually used
A formal, technical register word, most common in scientific, academic, and engineering contexts. It is rarely used in casual conversation except among specialists. In modern usage, sense one (relating to computers) dominates overwhelmingly.
Easily confused with computational
'Computerized' describes something operated by or converted to use computers, while 'computational' more broadly refers to computation itself — including mathematical calculation and algorithmic processes — whether or not a computer is involved.