The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
What makes America great?
In the last decade, movies and television have sprouted a new plot weakness: if tension hinged in any way on a situation that could have been solved by a simple cell phone call or text message, the call was never placed and the…
So for the past 18 months, there has been a horrific security hole in many of Apple's products that has allowed "man in the middle" attacks on supposedly secure Internet communications.
It is over. Mt. Gox, bitcoin’s oldest—and once its most popular—exchange, was taken offline Monday night, leaving behind angry customers and acrimonious debate about where the world’s first popular cryptocurrency goes next.
The once-popular Bitcoin exchange Mt. Gox has gone dark.
Predictions about technology's future are almost always doomed.
I think it was the search for "pink glitter tiny toms" that finally prompted me to quit Google.
In the history of marketing, there's a classic tale that centers on the humble cake mix.
Every morning at around 4:30 a.m., James Clapper wakes up and prepares for the worst job in Washington.
It's hard to know where to start with Ray Kurzweil.
Last June, in an interview with Adam Bryant of The Times, Laszlo Bock, the senior vice president of people operations for Google—i.e., the guy in charge of hiring for one of the world's most successful companies—noted that Google…
For the past two decades, the Internet has operated as an unregulated, competitive free market.
Over the last two decades, it can be argued, no area of study has seen larger growth in span and general application than computer science.
Print media evolved into its present forms.
Last September, the Times reported that Voyager 1, the hardy spacecraft launched in 1977, had exited the solar system and entered the interstellar void.
It seems as if every week there's a news story about someone committing a crime and confessing to it on Facebook, bragging about it on Twitter or sharing photos of it via Instagram.
Many bitcoin users are probably too young to remember the Notorious B.I.G.'s 1997 rap hit "Mo Money Mo Problems."
In February 2013, Lindsey Vonn—perhaps the most accomplished female skier in American history—tore her anterior cruciate ligament in a crash in the mountains of Austria.
U.S. cybersecurity officials have been much more skeptical about international cooperation than their Cold War counterparts were.
Q. What leadership lessons have you learned from your predecessor, Steve Ballmer?
Earlier this month, Ken Ham, the founder of the Creation Museum, in Petersburg, Kentucky, held a debate with Bill Nye at the museum.
In a digital world, our every move can be tracked, collected and analysed.
There may be no greater design crime today than putting a touchscreen in an automobile.
The scale and grandeur of the Winter Olympics in Sochi is estimated to have cost Russia an astronomical $46 billion.
Artificial intelligence is here now.
It was a mild October day in Hollywood, but a trace of artificial snow remained on the ground as Neil deGrasse Tyson, the director of the Hayden Planetarium, at the American Museum of Natural History, walked around a back lot…
Will "smart machines" steal our jobs?
Google Glass shares much of its electronics and software with the smartphone, but it's a very different machine.
One of the recommendations by the president's Review Group on Intelligence and Communications Technologies on reforming the National Security Agency—No. 5, if you're counting—is that the government should not collect and store …
In Mikhail Bulgakov's novel "The Master and Margarita," the protagonist, a writer, burns a manuscript in a moment of despair, only to find out later from the Devil that "manuscripts don't burn."
The ambitious systems that we develop today need a proper requirements structure. The plan defined here organizes requirements specification along …
The circular slide rule was widely used until the 1970s.
The focus is on executable exams for an Introduction to Computer Science course.