Security
Sound waves could be used to hack into critical sensors in a broad array of technologies including smartphones, automobiles, medical devices and the Internet of Things, University of Michigan research shows.
Mar 14, 2017
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55
Security
Experts are investigating after the computer systems of two central Florida hospitals showed signs of unusual activity, an official said.
Jun 5, 2021
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3
Security
An apparent cyberattack on Iowa's largest school district has led officials to cancel classes for 30,000 students for a second day as technicians scramble to protect data and restore the computer system, the district's leader ...
Jan 11, 2023
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Computer Sciences
From a pair of simple principles of evolution—chance mutation and natural selection—nature has constructed an almost unfathomable richness of life around us. Despite our scientific sophistication, human design and engineering ...
Jan 19, 2021
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Security
It was the start of a steamy Friday two Augusts ago when Jason Whisler settled in for a working breakfast at the Coffee Ranch restaurant in the Texas Panhandle city of Borger. The most pressing agenda item for city officials ...
Jul 26, 2021
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Security
In a tweet, Tesla CEO Elon Musk solved a mystery involving a 27-year-old Russian, an insider at an unnamed corporation and an alleged million-dollar payment offered to help trigger a ransomware extortion attack on the firm.
Aug 29, 2020
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8
Engineering
Understanding the workings and behaviors of a city requires knowledge of the different processes that allow people and other biological organisms to live and thrive, as well as understanding of their interrelationships—many ...
Oct 2, 2019
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22
Software
Microsoft's video game unit Xbox on Thursday said it will tap into cloud computing to make "Fortnite" free to play on mobile devices powered by Apple or Android software.
May 6, 2022
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7
Engineering
We all mark days with clocks and calendars, but perhaps no timepiece is more immediate than a mirror. The changes we notice over the years vividly illustrate science's "arrow of time"—the likely progression from order to ...
Mar 14, 2019
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Machine learning & AI
A judge in Colombia caused a stir by announcing he had used the AI chatbot ChatGPT in preparing a ruling in a children's medical rights case.
Feb 2, 2023
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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
