The primary microcomputer named “Micral N” was created by the French engineer Francois Gernelle in 1973, 5 years earlier than Apple and three years earlier than IBM.
Guillaume Souvant/AFP
conceal caption
toggle caption
Guillaume Souvant/AFP
It is a easy phrase that has developed a sinister connotation: algorithm. For many people, algorithms assist decide what we watch, learn and take heed to — within the course of, confirming our tastes and biases, and creating ideological echo chambers.
The phrase won’t seem to be one that will get a lot consideration from the Holy See. However final month in his first encyclical, Pope Leo XIV addressed the potential risks of synthetic intelligence. The phrase “algorithm” got here up 19 occasions.
Pope Leo XIV waves as he leaves after his weekly common viewers in St. Peter’s Sq. at The Vatican, Wednesday, Might 27, 2026.
Alessandra Tarantino/AP
conceal caption
toggle caption
Alessandra Tarantino/AP
As a part of NPR’s “Phrase of the Week” sequence, we’re wanting on the historical past of the phrase that is outlined a lot of recent life — and within the course of, we’ll blow the mud off some historic mathematical ideas.
The place does it come from?
The etymology of the phrase is an odd one, in accordance with Rob Watts, a journalist and host of RobWords, a preferred YouTube channel about phrase origins and utilization. “It just sounds like a mathematical term,” he notes. As an alternative, it invokes a particular mathematician, he says: the Ninth century Persian Muhammad ibn Musa al-Khwarizmi.
“It’s actually the Latin take on that name al-Khwarizmi that we’re invoking when we use the word algorithm,” Watts says.
But it surely’s taken a moderately convoluted journey to achieve us a dozen centuries later. The trendy phrase algorithm traces again to the Latin algorismus via French (algorisme) and English (algorism). It additionally acquired “somewhat conflated with the term “arithmetic” before arriving in its current form, Watts says.
Who was Muhammad ibn Musa al-Khwarizmi?
Al-Khwarizmi wasn’t just a mathematician — he was also an astronomer and geographer, who hailed from south of the Aral Sea in present day Uzbekistan. Part of his name is derived from Khwarazm, as the region was called.
But mathematics was where he made some of his most important contributions. Through his influential book, which roughly translates to The Compendious Book on Calculation by Completion and Balancing, he helped introduce algorithmic methods for solving mathematical problems, popularized the use of Hindu-Arabic numerals (including the concept of zero) in the West, and laid the groundwork for algebra — thus ensuring his place in the hearts of generations of ninth graders.
Al-Khwarizmi’s concepts embedded themselves into fashionable arithmetic, in accordance with Judy Grabiner, a historian of science and professor emeritus of Pitzer School.
“This book gets translated into Latin in the 12th century more than once, because in 12th century Europe there was a revival of learning, an interest in ancient learning,” she says.
Different scientific phrases and names, many starting with al — Arabic for “the” — made their method into English throughout a flowering of Islamic science and math that started within the eighth century. Examples embody phrases like alcohol, alkali, alchemy, and in astronomy, star names similar to Altair, Alkaid, Alcor and Aldebaran.
A mathematical recipe
The algorithm made the leap from astronomy and chemistry to fashionable computing.
Invoice Westrick, a software program engineer primarily based in Indiana, has been utilizing algorithms in his every day work for many years. Most individuals may even see them as a black field locked inside a pc, he acknowledges, however “an algorithm is really just a well-defined set of instructions to accomplish a task.”
Consider it like a cake recipe: “You get the cake mix and it has a set of instructions,” Westrick says. The recipe “tells me to put the ingredients in a particular order or mix it for a particular amount of time. I may not understand why that is, but if I follow those instructions, I should end up with a nice cake.”
Lengthy earlier than fashionable computer systems, algorithms proved extraordinarily helpful in numerous fields of arithmetic, similar to enterprise, surveying and navigation, says Susan McRoy, chair of the Pc Science Division on the College of Milwaukee.
“The algorithm is something that has enabled us to control really complex and wonderful technology,” she says.
Take navigation: At sea, celestial navigation, which got here into its personal within the late 1700s, requires algorithms to crunch the inputs from a sextant that permits mariners to find out their place on the floor of a sphere. Within the Nineteen Fifties, a German pc scientist, Edsger Dijkstra, developed what got here to be often known as Dijkstra’s algorithm, a method of discovering the shortest highway distance between two factors, which is essential to computer-based mapping apps. And, in fact, modern-day satellite-based GPS wouldn’t work with out its personal set of advanced algorithms.
American mathematician Daniel G Nichols screens IBM consoles within the Actual-Time Program Improvement Department of NASA’s Mission Planning and Evaluation Division, on the Manned Spacecraft Middle in Houston, Texas, circa 1965.
Nocella/Getty Photos/Hulton Archive
conceal caption
toggle caption
Nocella/Getty Photos/Hulton Archive
Algorithms even helped us land on the moon.
“The whole world of applied mathematics and imperialism and countries fighting at sea, not to mention linguistics, all come together in this,” Grabiner observes.
So, the pope could also be rightly involved about what he described as dehumanizing algorithms that feed us a single, self-reinforcing viewpoint on social media. But it surely could be price remembering that algorithms have been serving to people discover their method for hundreds of years.
