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Hydrogen | Properties, Uses, Facts | Britannica Hydrogen, a colorless, odorless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements The earliest known chemical property of hydrogen is that it burns with oxygen to form water; indeed, the name hydrogen is derived from Greek words meaning ‘maker of water ’
Computer | Definition, History, Operating Systems, Facts | Britannica A computer is a programmable device for processing, storing, and displaying information Learn more in this article about modern digital electronic computers and their design, constituent parts, and applications as well as about the history of computing
What is a computer? - Britannica A computer is a machine that can store and process information Most computers rely on a binary system, which uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms, and displaying information
computer summary | Britannica computer, Programmable machine that can store, retrieve, and process data A computer consists of the central processing unit (CPU), main memory (or random-access memory, RAM), and peripherals (e g , a keyboard, a printer, disc drives)
Computer - History, Technology, Innovation | Britannica The history of the solving of these problems is the history of the computer That history is covered in this section, and links are provided to entries on many of the individuals and companies mentioned
Computer - Technology, Invention, History | Britannica By the second decade of the 19th century, a number of ideas necessary for the invention of the computer were in the air First, the potential benefits to science and industry of being able to automate routine calculations were appreciated, as they had not been a century earlier
Computer - Memory, Storage, Processing | Britannica Computer - Memory, Storage, Processing: The earliest forms of computer main memory were mercury delay lines, which were tubes of mercury that stored data as ultrasonic waves, and cathode-ray tubes, which stored data as charges on the tubes’ screens
Artificial intelligence (AI) | Definition, Examples, Types . . . What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason
computer - Kids | Britannica Kids | Homework Help Computer software is divided into two basic types—the operating system and application software The operating system controls how the different parts of hardware work together Application software gives the computer instructions for doing specific tasks, such as word processing or playing games
Computer science | Definition, Types, Facts | Britannica Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing information