Business

Microchip security continues to confound Pentagon

Nearly nine years ago, the Senate Armed Services Committee reported the results of an investigation of counterfeit electronic parts in the U.S. military. The year-long probe found fully 1 million bogus parts, including components ...

Machine learning & AI

AI-assisted detection of biosignals and human emotions

Fundamental methodology research on autonomous learning can benefit most, if not all, computer vision tasks. With the aid of autonomous learning, we can automatically design a contextual-aware neural network for different ...

Hardware

Microsoft adopts boiling liquid to cool datacenter servers

Microsoft has implemented boiling liquid to help keep datacenter servers at reasonable temperatures. The company uses electronic equipment and liquid capable of boiling at 122 degrees Fahrenheit, 90 degrees below the boiling ...

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Computer

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