Tag: computer

Brain-Computer Interfaces Could Allow Soldiers To Control Weapons With Their Thoughts And Turn Off Their Fear – But The Ethics Of Neurotechnology Lags Behind The Science
SCIENCE, TECHNOLOGY, VIDEO REELS

Brain-Computer Interfaces Could Allow Soldiers To Control Weapons With Their Thoughts And Turn Off Their Fear – But The Ethics Of Neurotechnology Lags Behind The Science

Imagine that a soldier has a tiny computer device injected into their bloodstream that can be guided with a magnet to specific regions of their brain. With training, the soldier could then control weapon systems thousands of miles away using their thoughts alone. Embedding a similar type of computer in a soldier’s brain could suppress their fear and anxiety, allowing them to carry out combat missions more efficiently. Going one step further, a device equipped with an artificial intelligence system could directly control a soldier’s behavior by predicting what options they would choose in their current situation. While these examples may sound like science fiction, the science to develop neurotechnologies like these is already in development. Brain-computer interfaces, or BCI, are techno...
What Is Proof-Of-Stake? A Computer Scientist Explains A New Way To Make Cryptocurrencies, NFTs And Metaverse Transactions
CRYPTOMARKET, TECHNOLOGY, VIDEO REELS

What Is Proof-Of-Stake? A Computer Scientist Explains A New Way To Make Cryptocurrencies, NFTs And Metaverse Transactions

Proof-of-stake is a mechanism for achieving consensus on a blockchain. Blockchain is a technology that records transactions that can’t be deleted or altered. It’s a decentralized database, or ledger, that is under no one person or organization’s control. Since no one controls the database, consensus mechanisms, such as proof-of-stake, are needed to coordinate the operation of blockchain-based systems. While Bitcoin popularized the technology, blockchain is now a part of many different systems, enabling interesting applications such as decentralized finance platforms and non-fungible tokens, or NFTs. The first widely commercialized blockchain consensus mechanism was proof-of-work, which enables users to reach consensus by solving complex mathematical problems. For solving these problems...
A Computer Scientist Explains – Why ‘Bad’ Ads Appear On ‘Good’ Websites
IN OTHER NEWS, Journalism

A Computer Scientist Explains – Why ‘Bad’ Ads Appear On ‘Good’ Websites

Sketchy ads, like those for miracle weight loss pills and suspicious-looking software, sometimes appear on legitimate, well-regarded websites. It turns out that most websites don’t actually decide who gets to show ads to their viewers. Instead, most sites outsource this task to a complex network of advertising tech companies that do the work of figuring out which ads are shown to each particular person. The online ad ecosystem is largely built around “programmatic advertising,” a system for placing advertisements from millions of advertisers on millions of websites. The system uses computers to automate bidding by advertisers on available ad spaces, often with transactions occurring faster than would be possible manually. Programmatic advertising is a powerful tool that allows advertiser...
Yep Smart Devices Do Spy On You – 2 Computer Scientists Explain How The Internet Of Things Can Violate Your Privacy
IN OTHER NEWS, TECHNOLOGY

Yep Smart Devices Do Spy On You – 2 Computer Scientists Explain How The Internet Of Things Can Violate Your Privacy

Have you ever felt a creeping sensation that someone’s watching you? Then you turn around and you don’t see anything out of the ordinary. Depending on where you were, though, you might not have been completely imagining it. There are billions of things sensing you every day. They are everywhere, hidden in plain sight – inside your TV, fridge, car and office. These things know more about you than you might imagine, and many of them communicate that information over the internet. Back in 2007, it would have been hard to imagine the revolution of useful apps and services that smartphones ushered in. But they came with a cost in terms of intrusiveness and loss of privacy. As computer scientists who study data management and privacy, we find that with internet connectivity extended to devices ...
Divided By Gender – Stereotypes Dissuade Girls From Careers In Computer Science
EDUCATION

Divided By Gender – Stereotypes Dissuade Girls From Careers In Computer Science

Allison Master, University of Houston; Andrew N. Meltzoff, University of Washington, and Sapna Cheryan, University of Washington Stereotypes about what boys and girls supposedly like aren’t hard to find. Toy advertisements send signals that science and electronic toys are intended for boys rather than girls. Computer scientists and engineers on television shows and movies are often white men, like the guys on “The Big Bang Theory.” Policymakers, teachers and parents sometimes subscribe to these stereotypes, too. They might spread them to children. Efforts to combat these stereotypes often focus on boys’ and girls’ abilities. But as researchers who specialize in motivation, identity and cognitive development, we think society has largely overlooked another harmful stereotype. And that ...
50 Years Ago Computer Space Launched The Video Game Industry – Here’s The Real Reason You Probably Haven’t Heard Of It
TECHNOLOGY, VIDEO REELS

50 Years Ago Computer Space Launched The Video Game Industry – Here’s The Real Reason You Probably Haven’t Heard Of It

Noah Wardrip-Fruin, University of California, Santa Cruz Before Pong there was Computer Space, the first commercial video game. The progenitor of today’s US$175 billion industry debuted on Oct. 15, 1971, at the Music Operators of America trade show in Chicago. Housed in a futuristic-looking cabinet, Computer Space took its place alongside the latest jukeboxes, pinball machines and other coin-operated games manufacturers were pitching to arcade and bar owners. Computer Space was innovative, but how was it to play? Ed Fries, CC BY-ND Computer Space, made by the small company Nutting Associates, seemed to have everything going for it. Its scenario – flying a rocket ship through space locked in a dogfight with two flying saucers – seemed perfect for the times. The Apollo Moon missions were in...
A Small And Shrinking Number Of The World’s Computer Chips Are Made In The US – A Global Semiconductor Shortage Highlights A Troubling Trend
SCIENCE

A Small And Shrinking Number Of The World’s Computer Chips Are Made In The US – A Global Semiconductor Shortage Highlights A Troubling Trend

President Joe Biden’s executive order calling for a review of supply chains for critical products put a spotlight on the decades-long decline in U.S. semiconductor manufacturing capacity. Semiconductors are the logic and memory chips used in computers, phones, vehicles and appliances. The U.S. share of global semiconductor fabrication is only 12%, down from 37% in 1990, according to the Semiconductor Industry Association.   CC BY-ND It might not seem important that 88% of the semiconductor chips used by U.S. industries, including the automotive and defense industries, are fabricated outside the U.S. However, three issues make where they are made critical to the U.S. as the global leader in electronics: lower capability, high global demand and limited investment. Lower capability The ...
Why Are Computer Science Jobs Out Of Reach For So Many Of America’s Students? They Are Growing Fast And They Pay Well
TECHNOLOGY, VIDEO REELS

Why Are Computer Science Jobs Out Of Reach For So Many Of America’s Students? They Are Growing Fast And They Pay Well

When it comes to the digital divide, often the focus is on how lack of internet service and basic technology will hurt students’ academic performance. This is particularly true during the pandemic, when most schools are operating online. But as a STEM educator at one of the nation’s elite historically Black colleges, I see another negative effect of the digital divide: racial disparities in the field of computer science. Computer science is one of the fastest-growing and highest-paying fields. So if students from certain groups are being shut out of the field, it means that public education is failing in its role as the great equalizer. I see some ways for that to change. But first, a few statistics. The color of computer science When you look at computer science, just 8.9% of the more ...
A Computer Scientist Explains – What A Neural Network Is
TECHNOLOGY, VIDEO REELS

A Computer Scientist Explains – What A Neural Network Is

One of the central technologies of artificial intelligence is neural networks. In this interview, Tam Nguyen, a professor of computer science at the University of Dayton, explains how neural networks, programs in which a series of algorithms try to simulate the human brain work. Tam Nguyen explains neural networks. What are some examples of neural networks that are familiar to most people? There are many applications of neural networks. One common example is your smartphone camera’s ability to recognize faces. Driverless cars are equipped with multiple cameras which try to recognize other vehicles, traffic signs and pedestrians by using neural networks, and turn or adjust their speed accordingly. Neural networks are also behind the text suggestions you see while writing texts or emails, ...