Computer Sciences
In modern cryptosystems, users generate public and private keys that guarantee security based on computational complexity and use them to encrypt and decrypt information. Recently however, modern public-key cryptosystems ...
Jul 22, 2022
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Security
Tired of Siri or Google Assistant draining your phone battery?
Nov 13, 2020
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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 ...
Robotics
Removing litter from oceans and seas is a costly and time-consuming process. As part of a European cooperative project, a team at the Technical University of Munich (TUM) is developing a robotic system that uses machine learning ...
Dec 29, 2021
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Robotics
In recent years, roboticists have developed mobile robots with a wide range of anatomies and capabilities. A class of robotic systems that has been found to be particularly promising for navigating unstructured and dynamic ...
Hardware
Current computer systems are very good at performing exact calculations. But as we are using more and more AI-based applications, we also need more efficient systems that are able to process data in real time with the same ...
May 26, 2023
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45
Computer Sciences
The simulation of physical systems using computing tools can have numerous valuable applications, both in research and real-world settings. Most existing tools for simulating physical systems are based on physics theory and ...
Machine learning & AI
Computer scientists at Otto von Guericke University Magdeburg are aiming to use the findings and established methods of brain research to better understand the way in which artificial intelligence works.
Feb 18, 2020
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183
Computer Sciences
Listeners of high-energy music such as hard rock and hip-hop may be given less accurate music recommendations by music recommender systems than listeners of other non-mainstream music, according to research published in the ...
Mar 29, 2021
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Security
Denial of service (DOS) and distributed denial of service (DDOS) attacks on computer systems are a major concern to those charged with keeping online services running and protecting systems and those who use them. Such intrusions ...
Jul 1, 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
