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The ClickStart (with the slogan My First Computer) is an educational computer system created for children aged between 3 and 6 years (toddler to kindergarten) by LeapFrog Enterprises and was introduced in 2007. It is LeapFrog's second home console, and the first to come with its own games.
It was designed and invented by John Blankenbaker of Kenbak Corporation in 1970, and was first sold in early 1971. Unlike a modern personal computer, the Kenbak-1 was built of small-scale integrated circuits, and did not use a microprocessor. The system first sold for US$750. Only 44 machines were ever sold, though it's said 50 to 52 were built.
This is an accepted version of this page This is the latest accepted revision, reviewed on 26 December 2024. American educational entertainment and electronics company "LeapFrog" redirects here. For the children's game, see Leapfrog. For other uses, see Leapfrog (disambiguation). This article needs to be updated. Please help update this article to reflect recent events or newly available ...
The 90-minute live demonstration featured the introduction of a complete computer hardware and software system called the oN-Line System or, more commonly, NLS, which demonstrated for the first time many of the fundamental elements of modern personal computing, including windows, hypertext, graphics, efficient navigation and command input ...
A "Hello, World!"program is usually a simple computer program that emits (or displays) to the screen (often the console) a message similar to "Hello, World!".A small piece of code in most general-purpose programming languages, this program is used to illustrate a language's basic syntax.
It used windows, icons, and menus (including the first fixed drop-down menu) to support commands such as opening files, deleting files, moving files, etc. In 1974, work began at PARC on Gypsy, the first bitmap What-You-See-Is-What-You-Get cut and paste editor. In 1975, Xerox engineers demonstrated a graphical user interface "including icons and ...
The ZX80 was widely advertised as the first personal computer for under £100 GBP [17] (US$200. [ 4 ] [ 10 ] ) Kilobaud Microcomputing liked the design of the preassembled version, and said that the screen flickering during input or output was annoying but useful as an undocumented feature , indicating the computer functioning correctly.
The CRT consists of an electron gun that forms images by firing electrons onto a phosphor-coated screen. The earliest CRTs were monochrome and were used primarily in oscilloscopes and black and white televisions. The first commercial colour CRT was produced in 1954.