Computer Sciences

Break it down: A new way to address common computing problem

In this era of big data, there are some problems in scientific computing that are so large, so complex and contain so much information that attempting to solve them would be too big of a task for most computers.

Energy & Green Tech

Open source for a global 'energiewende'

Computer models are essential for achieving energy turnaround also known as "Energiewende". Simulations can help in the planning of capacities for generating, transporting, and storing energy, taking into account dynamic ...

Business

Brexit is back: UK aims to prepare public for Jan 1 EU break

The British government told individuals and businesses Monday to get ready for new costs and red tape—but also an exciting "new start"—when the U.K. leaves the European Union's economic embrace in less than six months.

Hardware

Reports: Intel chips have new security flaws

A pair of new security threats to Intel-based computer systems have been revealed. The beleaguered semiconductor chip manufacturer has faced a seemingly endless series of vulnerabilities over the past two years.

Telecom

A system to produce context-aware captions for news images

Computer systems that can automatically generate image captions have been around for several years. While many of these techniques perform considerably well, the captions they produce are typically generic and somewhat uninteresting, ...

Hardware

Cooking Raspberry Pi for the smart home

Researchers in India describe the potential of the low-cost Raspberry Pi computer to be used as a control system for home automation using the so-called Internet of Things. They outline details in the International Journal ...

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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