Energy & Green Tech
On a cold winter day, the warmth of the sun is welcome. Yet as humanity emits more greenhouse gases, the Earth's atmosphere traps more and more of the sun's energy, which steadily increases the Earth's temperature. One strategy ...
Feb 8, 2023
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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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Computer Sciences
A team of researchers affiliated with a host of institutions across China has modified Shor's algorithm in a way that could allow less powerful quantum computers to crack current cryptosystems. The team describes their modifications ...
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
Ralph Lydic, professor in the UT Department of Psychology, and Dmitry Bolmatov, a research assistant professor in the UT Department of Physics and Astronomy, are part of a UT/ORNL research team studying how bio-inspired materials ...
Jan 9, 2023
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Engineering
It is hard to imagine modern traffic networks without tunnels. They help us bypass rivers and mountains, and make sure traffic doesn't interfere too much with our daily lives in urban areas. Modern tunnels are highly complex ...
Dec 13, 2022
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Hardware
A large percentage of energy used today is consumed in the form of electrical power for processing and storing data and for running the relevant terminal equipment and devices. According to predictions, the level of energy ...
Dec 6, 2022
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Computer Sciences
NIALM (Non-Intrusive Appliance Load Monitoring) can "sense" appliances using electrical power. NIALM is used in homes and small buildings. For this, NIALM can require hundreds of labeled power signal images from each appliance ...
Nov 21, 2022
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Electronics & Semiconductors
Qualcomm launched its latest Snapdragon processor on Tuesday for the next crop of top-tier Android smartphones—with artificial intelligence infused throughout the chip to boost photography, sound, connectivity, gaming and ...
Nov 16, 2022
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Computer Sciences
For decades, linguists have racked their brains over the question of precisely how the syntax of various languages is different. Ph.D. candidate Martin Kroon has developed a computer system that brings us closer to finding ...
Nov 10, 2022
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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
