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a prehistoric picture on the interior of a cave, often depicting animals.
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a book, document, or piece of music written by hand rather than typed or printed.
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denoting or relating to the wedge-shaped characters used in the ancient writing systems of Mesopotamia, Persia, and Ugarit, surviving mainly impressed on clay tablets.
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a printed publication (usually issued daily or weekly) consisting of folded unstapled sheets and containing news, feature articles, advertisements, and correspondence.
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a machine with keys for producing alphabetical characters, numerals, and typographical symbols one at a time on paper inserted around a roller.
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a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
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a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
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a card perforated according to a code, for controlling the operation of a machine, used in voting machines and formerly in programming and entering data into computers.
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a system for transmitting visual images and sound that are reproduced on screens, chiefly used to broadcast programs for entertainment, information, and education.
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ENIAC, in full Electronic Numerical Integrator and Computer, the first programmable general-purpose electronic digital computer, built during World War II by the United States.
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Mainframes (also called "big iron") are powerful computers used for large information processing jobs. They are mainly used by government institutions and large companies for tasks such as census, industry and consumer statistics, enterprise resource planning, and financial transaction processing.
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a computer designed for use by one person at a time.
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A portable computer is a personal computer that is designed to be easily transported and relocated, but is larger and less convenient to transport than a notebook computer. The earliest PCs designed for easy transport were called portables.
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A blog (shortening of “weblog”) is an online journal or informational website displaying information in the reverse chronological order, with latest posts appearing first.
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A web browser (commonly referred to as a browser) is a software application for accessing information on the World Wide Web. ... The most popular browsers are Chrome, Firefox, Safari, Internet Explorer, and Edge.
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Wearable technology is a category of electronic devices that can be worn as accessories, embedded in clothing, implanted in the user's body, or even tattooed on the skin.
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a dedicated website or other application which enables users to communicate with each other by posting information, comments, messages, images, etc.
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a social media site to which a user makes short, frequent posts.
