Computer Sciences

Why ChatGPT isn't conscious—but future AI systems might be

In June 2022, Google engineer Blake Lemoine made headlines by claiming the company's LaMDA chatbot had achieved sentience. The software had the conversational ability of a precocious seven-year-old, Lemoine said, and we should ...

Business

Airlines plan to ask passengers for contact-tracing details

The U.S. airline industry is pledging to expand the practice of asking passengers on flights to the United States for information that public health officials could use for contact tracing during the pandemic.

Computer Sciences

Sensor imperfections are perfect for forensic camera analysis

In a project aimed at developing intelligent tools to fight child exploitation, University of Groningen computer scientists have developed a system to analyze the noise produced by individual cameras. This information can ...

Computer Sciences

Three questions about quantum computing and secure communications

A radically different type of computing technology under development, known as quantum computing, could in theory decode secure communications and jeopardize military communications, critical infrastructure, and financial ...

Engineering

Eco-friendly device detects real-time pipe damage

A researcher at University of Limerick has developed a low-cost, environmentally friendly sensor that can detect damage in pipelines and could save water as a result.

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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