Business
Samsung Electronics forecast a 23-percent rise in second-quarter operating profit Tuesday, with strong demand for memory chips and displays overcoming the impact of the coronavirus pandemic on smartphone sales.
Jul 07, 2020
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4
Energy & Green Tech
For all the advances enabled by artificial intelligence, from speech recognition to self-driving cars, AI systems consume a lot of power and can generate high volumes of climate-changing carbon emissions.
Jul 03, 2020
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287
Computer Sciences
Teleportation is most commonly the stuff of science fiction and, for many, would conjure up the immortal phrase "Beam me up, Scotty".
Jul 02, 2020
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12
Business
An international group of consumer advocates and NGOs denounced Google's bid for sports smartwatch-maker Fitbit Thursday, saying it would threaten privacy and grant Google unfair access to a new market.
Jul 02, 2020
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6
Hi Tech & Innovation
Public camera footage of how people have responded so far to COVID-19 social distancing guidelines in spaces such as tourist spots and busy street corners could help inform new policies as the pandemic progresses.
Jul 01, 2020
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8
Computer Sciences
Over the past decade or so, researchers have been developing increasingly advanced artificial intelligence (AI) systems for a wide range of applications. This includes computational techniques that can interact with humans, ...
Jul 01, 2020 feature
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152
Computer Sciences
In a tense time when a pandemic rages, politicians wrangle for votes and protesters demand racial justice, a little politeness and courtesy go a long way. Now researchers at Carnegie Mellon University have developed an automated ...
Jun 30, 2020
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6
Computer Sciences
Researchers at Carnegie Mellon University have developed an efficient new way to quickly analyze complex geometric models by borrowing a computational approach that has made photorealistic animated films possible.
Jun 29, 2020
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139
Security
Russia-based hackers are stepping up ransomware attacks against major US firms seeking to cripple computer networks if their demands for millions of dollars are not met, security researchers are warning.
Jun 26, 2020
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19
Computer Sciences
The brain analyzes spoken language by recognizing syllables. Scientists from the University of Geneva (UNIGE) and the Evolving Language National Centre for Competence in Research (NCCR) have designed a computational model ...
Jun 26, 2020
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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
