The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
One year I spent a lot of time with professional magicians.
Clifford I. Nass, a professor of communication at Stanford who died on Saturday, regaled me several times over the years about his method for torturing students in the undergraduate dorm hall where he was an adviser.
The biggest breakthroughs in how we make things lie not in the technology to manipulate materials but in the materials themselves.
Steve Jobs's solution to Google's Android-everywhere strategy was simple and audacious: he unveiled the iPad.
The Internet is piling yet more vitriol on the shoddy Obamacare rollout in response to a report, by Bloomberg's Alex Wayne, that the administration has recruited technology experts from Google, Oracle, and Red Hat to help fix…
Encryption is one of the most important ways to safeguard data from prying eyes.
Chancellor Merkel has put on a good show of being outraged by American spying.
Considering the ethical questions raised by technologies that are moving from knowing what we are doing (and where) to knowing who we are.
Combining efforts and expertise, ACM and Code.org are partnering to address a rapidly changing education landscape.
Seeking to address the challenges of privacy by design through regulatory process and formal law.
Assessing the shifting perspectives on patentability standards for software.
How lessons learned from the evolution of the Web and Web browsers can influence the development of AR browsers.
A question of biology, technology, and society.
Who is Camille Noûs, who has contributed to hundreds of papers on Google Scholar?
By 2019, I generally thought there wasn't much that could surprise me about organizing meetups. Then Covid-19 hit. I was …
Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.