The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
As smartphones using Google's Android operating system become mainstream, James Steele and Nelson To are in a pretty good position.
As in the real world, cyberspace has bad neighborhoods. But unlike the real world, risks in cyberspace are not easy to spot—and the location of those digital bad neighborhoods can change all the time.
Chipmaker Intel has been investigating the issue of scaling the number of cores in chips through its Terascale Computing Research Program, which has so far yielded two experimental chips of 80 and 48 cores.
A draft solution to the so-called "P versus NP" problem generated excitement in 2010; will 2011 bring a correct proof?
Who says you have to be a guy to be a geek? This Google senior executive is teaching a new generation that femininity and technology are a winning formula.
Everyone wants an iPad this Christmas, right?
How the inventor of the PalmPilot studied the workings of the human brain to help companies turn a deluge of data into business intelligence.
The easiest way to sum up the Web in 2010 is that it was a year of growth. The big got bigger and smaller companies came out of the woodwork with new plays on old ideas. It was also the year of location services, HTML5, and…
In May 2009, The Daily Telegraph set off a political storm in Britain when it detailed widespread expense-account abuse by members of Parliament. Among the claims: £1,645, or $2,547, for a floating duck house in one lawmaker’s…
I recently wrote a white paper entitled “Dragons, Tigers, Pearls, and Yellowcake” in which I proposed four alternative scenarios for the Stuxnet worm other than the commonly held assumption that it was Israel or the U.S. targeting…
In case you hadn't noticed, Google isn't just a Web search company any longer. In addition to online advertising, it's moving into operating system and application software, mobile telephone software, e-mail, Web browsers,…
In the personal-computer industry, where things change fast, one fact has been a constant for years: There are two major, mainstream operating systems for consumers.
As faculty members and officers of the Columbia University Graduate School of Journalism, we are concerned by recent reports that the Department of Justice is considering criminal charges against Julian Assange or others associated…
Expecting green technology to follow a Moore's Law-type axiom is a formula for disappointment, according to CNet's Martin LaMonica.
The launch of the Soviet Union's Sputnik satellite is an apt metaphor for the threat of a surprise cyberattack on the United States and as a catalyst for spurring development of effective cybersecurity, according to former U.S…
A new series on ACM's Ubiquity seeks to answer the question: 'What is computation?' In this opening article, Ubiquity's editor-in-chief Peter J. Denning and co-author Peter Wegner frame the debate. The ongoing symposium is available…
For years now, Jeff Han has been working on large-screen multitouch displays. Han and his company, Perceptive Pixel, are best known for creating the giant touch wall that John King and others at CNN use to break down the elections…
Just as the First Amendment is not a license to yell 'Fire!' in a crowded theater, it is also not a license to jeopardize national security.
"I'm aware of your need to stay anonymous, but I have to be able to describe the scope of this movement. Can any of you tell me where you're typing from?"
The head of the microblogging site talks about the future of social networking and whether being a 24-year-old CEO makes it harder to command respect.
Google is working on a virtual version of you. Will you call it 'Mini-Me?'
Two experts lay out the facts surrounding the controversy.
Scientists see fatal flaws in the NASA study of arsenic-based life.
U.S. Department of Energy Secretary Steven Chu recently highlighted the growing list of sectors where China's emerging leadership threatens U.S. players.
A truly free press—one unfettered by concerns of nationalism—is apparently a terrifying problem for elected governments and tyrannies alike.
Behind the fly-off-the-shelf popularity of products like Apple's iPad and iPhone are hundreds of thousands of manufacturing jobs—mostly overseas. Is it possible to create more of those jobs here in the U.S. to combat chronically…
What would happen if Facebook made its data available for research?
If there were a Mt. Rushmore of computer gaming, John Carmack's head would not only be on it, it would have the highest polygon count.
The Federal Trade Commission proposed this week that consumers should have a "do not track" option for the Internet, similar to the "do not call" list that exists to block telemarketers.
"Secrecy is important for many things," said WikiLeaks founder Julian Assange in an interview with Time over Skype on Monday. Managing editor Richard Stengel had just asked him whether there were instances when secrecy could…
The Research Community, Research Subject, and Research Process.
How should software engineers try to classify their reflections?
To game a programmed system means thwarting non-programmed intention.