Obsolete technologies

personal computer operating system developed by Microsoft

thumb|Basic diagram of an Onager (weapon)|onager, a type of catapult

deprecated multimedia platform used to add animation and interactivity to web pages

A pager, also known as a beeper or bleeper, is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter.

thumb|A royal landau (carriage)|landau outside [[Buckingham Palace, London]] thumb|Competitive driving in Rennes, France thumb|The National Coach Museum in [[Lisbon, Portugal]] A carriage is a two- or four-wheeled horse-drawn vehicle for passengers. In Europe they were a common mode of transport for the wealthy during the Roman Empire, and then again from around 1600 until they were replaced by the motor car around 1900. They were generally owned by the rich, but second-hand private carriages became common public transport, the equivalent of modern cars used as taxis. Carriage suspensions are

deprecated browser extension software for viewing multimedia, Rich Internet Applications, and streaming video and audio

method of internet access using a phone line and the creation of specific tones

thumb|Replica counterweight trebuchets at Château de Castelnaud-la-Chapelle|Château de Castelnaud thumb|Counterweight trebuchet used in a siege from the ''Jami' al-tawarikh'',

gas-filled digital indicator tube using stacked cathodes in the shape of digits or characters

thumb|right|250px|Illustration of a typical mimeograph machine

deprecated multimedia platform used to add animation and interactivity to web pages

medium for recording and reproducing sound

thumb|A PA-302 General Precision Laboratories (GPL) kinescope (c.1950–1955). Its movie camera|movie film camera, bolted to the top of the cabinet, used [[Kodak optics.]]

pulse, tone

computer monitor capable of displaying only two colors

power driven rotating shaft for power transmission

thumb|350px|Roland MPU-401 (top-cover removed).

IDE

obsolete technique for making steel by carburization of iron

experimental nuclear weapon

wooden human-powered hoisting and lowering device

thumb|1909 flash-lamp 1903 view camera thumb|Crop of patent number 636,492

Microsoft XML Core Services (MSXML) are set of services that allow applications written in JScript, VBScript, and Microsoft development tools to build Windows-native XML-based applications. It supports XML 1.0, DOM, SAX, an XSLT 1.0 processor, XML schema support including XSD and XDR, as well as other XML-related technologies.

obsolete dynamic web fonts implementation

thumb|A sample of decapoint. The relative efficiency of braille can be seen, as the line at the bottom is the braille transcription for the first two lines of decapoint: je vous prie de commander une planche pour la grille ci-jointe thumb|The decapoint alphabet, digits, and punctuationthumb|

thumb|Three amplidynes, from a 1951 General Electric advertisement (not to same scale). (top left) 1 kW amplidyne motor–generator, (bottom left) 3 kW amplidyne motor–generator, (right) 5 kW amplidyne generator. thumb|Figure 1 of the patent drawing