The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
The Tim Cook era at Apple emerged onto the public stage today in full force, and it bears subtle differences from Steve Jobs’s Apple.
I teach theory and practice of social media at NYU, and am an advocate and activist for the free culture movement, so I’m a pretty unlikely candidate for internet censor, but I have just asked the students in my fall seminar…
In June 2014, the Supreme Court handed down its decision in Riley v. California, in which the justices unanimously ruled that police officers may not, without a warrant, search the data on a cell phone seized during an arrest…
John Martinis is one of the world's foremost experts on quantum computing, a growing field of science that aims to process information at super high speeds using strange physics of very tiny particles such as electrons and photons…
The United States hasn't even abandoned its Web protection yet, and authoritarian governments are already making their move.
In 1970, Christopher Pyle disclosed in public writing that the U.S. Army was running a domestic intelligence program aimed at anti-war and civil-rights activists.
Jibo, the "world's first family robot," hit the media hype machine like a bomb.
Scala programming language designer Martin Odersky says he sees the industry in the midst of a paradigm shift, and Scala is leading the move toward a new balance between functional and object-oriented programming.
At 9:18 P.M. on February 12, 2009, Continental Connection Flight 3407, operated by Colgan Air, took off from Newark International Airport.
Three years ago, Shaun Winterton was looking at photos of bugs on Flickr.
This summer the insurgent group ISIS captured the Iraqi city of Mosul—and along with it, three army divisions' worth of U.S.-supplied equipment from the Iraqi army, including Humvees, helicopters, antiaircraft cannons and M1…
Operating with cutting-edge technology out of a trailer in rural Illinois, government researchers have started on a set of experiments that they say will help them determine whether or not you and me and everything that exists…
As the Internet and the disruptive innovations it spawns are becoming economically, politically, and culturally vital for the world’s three billion users (and counting), there's been a worrisome though unsurprising outburst of…
You may not realise it, but every time you open up your laptop or switch on your phone, you are at the heart of one of the greatest battles now taking place in our midst—what shape will the internet take in the future, and what…
Audie Cornish talks with University of Chicago Law School professor Omri Ben-Shahar about terms of service agreements for software and websites.
If you've been conscious at any point during the past 48 hours, you've probably heard about the slew of raunchy celeb selfies making their way around the internet.
Changes in land cover affect the global climate by absorbing and reflecting solar radiation, and by altering fluxes of heat, water vapour, carbon dioxide and other trace gases.
This week, the man responsible for what is probably the biggest cryptographic failure in military history died—just a few months before he was due to be released from prison.
ACM-Infosys Foundation Award recipient David Blei recalls the origins of his famous topic model, its extensions, and its uses in areas that continue to amaze him.
Reflections on the intersection of computing and the humanities.
Seeking to overcome nontechnical challenges to the scientific enterprise.
Using theoretical models to plan for AI safety.
Digital machines are automating knowledge work at an accelerating pace. How shall we learn and stay relevant?
Can technical and legal aspects be happily intertwined?