Hardware
A joint research team in China wrote a review on in-sensor visual computing, a three-in-one hardware solution that is more efficient, economical and secure than conventional machine vision systems, which collect, store, and ...
1 hour ago
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Business
A top Apple executive defended the tech giant's decision to make Google the default search engine on Apple iPhones and Macs, saying there was no "valid alternative.''
Sep 26, 2023
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Business
Chinese e-commerce giant Alibaba said Tuesday it intends to spin off its logistics arm Cainiao through an initial public offering in Hong Kong as the firm undergoes a massive restructuring.
Sep 26, 2023
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Energy & Green Tech
A new Loughborough University study on clean energy accessibility in Africa forecasts that 1.1 billion people will be without eco-friendly cooking fuels or technologies by 2050.
Sep 25, 2023
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Software
As Frontier, the world's first exascale supercomputer, was being assembled at the Oak Ridge Leadership Computing Facility in 2021, understanding its performance on mixed-precision calculations remained a difficult prospect. ...
Sep 25, 2023
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Security
Have you ever seen a dark shape out of the corner of your eye and thought it was a person, only to breathe a sigh of relief when you realize it's a coat rack or another innocuous item in your house? It's a harmless trick ...
Sep 25, 2023
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Security
With video calls becoming more common in the age of remote and hybrid workplaces, "mute yourself" and "I think you're muted" have become part of our everyday vocabularies. But it turns out muting yourself might not be as ...
Sep 25, 2023
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Software
Computer scientists have developed a new tool that enables quicker and more accurate detection of money laundering, with the ability to scan 50 million transactions in less than a second.
Sep 22, 2023
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Computer Sciences
It is often a nuisance for residents living near railroad lines—and such a multi-faceted challenge for experts that there should be more than one word for "railroad noise." Sounds from steel wheels on rough or smoother ...
Sep 21, 2023
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Business
"Game of Thrones" author George RR Martin and other best-selling fiction writers have filed a class-action lawsuit against OpenAI, accusing the tech startup of violating their copyrights to fuel its generative AI chatbot ...
Sep 21, 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
