Computer Sciences

Living with autonomous systems 'we can trust'

Autonomous systems are affecting virtually all aspects of society, so future designs must be guided by a broad range of societal stakeholders. That's according to a new report led by scientists in the Oden Institute for Computational ...

Computer Sciences

Predator and prey in cyber stasis

In the world of cybersecurity, just as in nature, there are predators and there is prey. The predators are the hunters, the ones that seek out the weak and the vulnerable on which to prey, that applies whether we are talking ...

Consumer & Gadgets

XR advertising could be a consumer threat if left unchecked

Whether it's trying on lipstick or clothing online, using floor plan software to find out how furniture will fit in a new home or ordering a contactless Coke using a cell phone, businesses are continually finding new ways ...

Security

Airline IT provider hacked, frequent flyer data breached

The hack of a company that manages ticket-processing and frequent-flier data for major global airlines—including Star Alliance and OneWorld members—has compromised the personal data of an unspecified number of travelers.

Security

Costa Rica public health system targeted by ransomware

Another attempted hacking of a Costa Rican government agency's computer system led the country's public health agency to shut down its systems Tuesday to protect itself, complicating the medical care of thousands of people.

Engineering

Intercepting enemy unmanned aircraft systems midflight

Sandia National Laboratories robotics experts are working on a way to intercept enemy unmanned aircraft systems midflight. They successfully tested their concept indoors with a swarm of four unmanned aircraft systems that ...

Automotive

Avoiding collisions with a new method learned from mariners

Preventing accidents by computing impending collisions of drones or cars: that is the goal of Darius Burschka. The professor at the Technical University of Munich (TUM) tracks every point in images generated by cameras carried ...

Security

NY transit officials confirm cyberattack; say harm limited

Hackers infiltrated computer systems for the Metropolitan Transportation Authority in New York, setting off a scramble to counter a potentially crippling cyberattack against North America's largest transit system, MTA officials ...

Other

Ethical algorithms

Nearly forty thousand people lost their lives in car crashes last year in the U.S. alone. We can only presume that many of those fatalities were owed to our uniquely human frailties: distracted driving, driving under the ...

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Computer

A computer is a machine that manipulates data according to a set of instructions.

Although mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). These were the size of a large room, consuming as much power as several hundred modern personal computers (PCs). Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space. Simple computers are small enough to fit into a wristwatch, and can be powered by a watch battery. Personal computers in their various forms are icons of the Information Age and are what most people think of as "computers". The embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are however the most numerous.

The ability to store and execute lists of instructions called programs makes computers extremely versatile, distinguishing them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore computers ranging from a mobile phone to a supercomputer are all able to perform the same computational tasks, given enough time and storage capacity.

This text uses material from Wikipedia, licensed under CC BY-SA