The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
ASCII art is as much a part of the Internet as emoticons, cats, or lol.
Many of us now expect our online activities to be recorded and analyzed, but we assume the physical spaces we inhabit are different.
In Spike Jonze's Oscar-nominated, futuristic film 'Her,' computers compose music, carry on seamless conversations with humans, organize emails instantaneously, and even fall in love.
Starting next week, the Internet is going to look very different—and ICANN Chief Executive Fadi Chehade is the one who'll get both the credit and the blame.
Technology companies will soon be able to disclose more details about the number of national security orders and requests they receive, according to a joint statement from Attorney General Eric Holder and Director of National…
Ever since virtual worlds and online games emerged in the mainstream consciousness around 2005, the media has insisted on framing them as escapist fantasies.
Sebastian Thrun was instrumental in building Google's self-driving car and Glass projects, and helped launch the company's Google X wing to spearhead "moonshot" projects like Project Loon.
How should we think about a currency like Bitcoin?
Privacy concerns have been ignited by "NameTag," a facial-recognition app designed to reveal personal information after analyzing photos taken on mobile devices.
For all its success, Google's famous Page Rank algorithm has never understood a word of the billions of Web pages it has directed people to over the years.
The White House announced via blog post on Thursday that it's forming working group focused on understanding the promises and pitfalls of big data (with a heavy emphasis on privacy, apparently) and how they might affect government…
In the movie Her, which was nominated for the Oscar for Best Picture this year, a middle-aged writer named Theodore Twombly installs and rapidly falls in love with an artificially intelligent operating system who christens herself…
Leading members of the U.S. cryptography and information-security research communities express their outrage over U.S. surveillance practices.
The world's most famous former intelligence contractor, Edward Snowden, is scheduled to answer questions posted on Twitter in an hour-long Webcast on Thursday.
On a future road trip, your robot car decides to take a new route, driving you past a Krispy Kreme Doughnut shop.
A mysterious new technology emerges, seemingly out of nowhere, but actually the result of two decades of intense research and development by nearly anonymous researchers.
Ann Cavoukian is the information and privacy commissioner in Ontario, Canada, and a longtime advocate of default online confidentiality.
Few critics of the NSA will find much satisfaction in President Obama's speech this morning or in the set of reforms that he announced.
In 2013, bitcoin's valuation didn't just skyrocket, but its infrastructure, services, and adoption exploded as well, culminating in recent announcements that major online retailer Overstock.com and NBA team the Sacramento Kings…
The baffling Bitcoin boom is either an exercise in self-delusion—a high-tech Ponzi scheme that will come crashing down—or an imaginative new Internet technology that could change how millions of people around the world conduct…
Those of us who came of age in the Internet era may not know that they owe their ability to go online to a court decision 30 years ago today about a mechanically intricate analog tape recorder.
Google rocked the smart home market Monday with its intention to purchase connected home thermostat maker Nest for $3.2 billion, which will force a much-needed conversation about data privacy and security for the Internet of…
In 1964, legendary writer of science fiction and science fact Isaac Asimov visited the World's Fair, where a General Electric pavilion chronicling advances in electric appliances inspired him to imagine how that progress might…
Back in 2003, when he was a law professor at the University of Virginia, Tim Wu wrote the definitive paper on net neutrality.
An "Open Internet" became endangered this week at a time when the U.S. increasingly relies on Internet services to deliver everything from education to entertainment.
A federal appeals court in Washington slapped the Federal Communications Commission on Tuesday for overstepping its legal authority by trying to regulate Internet access.
My expectations were low when I asked the National Security Agency to cooperate with my story on the impact of Edward Snowden’s leaks on the tech industry.
Google is acquiring Nest, makers of a smart thermostat, for a reported $3.2 billion.
I thought it would be interesting to hear from D-Wave, a start-up that has raised more than $130 million in venture capital and employs over 100 people.
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.