Handheld Device Markup Language

<p>The Handheld Device Markup Language (HDML) is a <a href="/facts/Markup_language/WwhlNVIu">markup language</a> intended for display on <a href="/facts/Handheld_computer/cNS1Rhvg">handheld computers</a>, <a href="/facts/Information_appliance/HYy6s4sB">information appliances</a>, <a href="/facts/Smartphone/cSIrBMWG">smartphones</a>, etc.. It is similar to <a href="/facts/HTML/sSc3fT78">HTML</a>, but for <a href="/facts/Wireless/GfDoFwfo">wireless</a> and handheld devices with small displays, like <a href="/facts/Personal_digital_assistant/fLTT1Uqy">PDA</a>, <a href="/facts/Mobile_phone/H3EcqD9h">mobile phones</a> and so on.  
</p><p>It was originally developed in about 1996 by <a href="/facts/Unwired_Planet/FJaSzBWy">Unwired Planet</a>, the company that became Phone.com and then <a href="/facts/Openwave/FJaSzBWy">Openwave</a>.  HDML was submitted to W3C for standardization, but was not turned into a standard.  Instead it became an important influence on the development and standardization of <a href="/facts/Wireless_Markup_Language/2Ua3u1Cw">WML</a>, which then replaced HDML in practice. Unlike WML, HDML has no support for scripts.
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Handheld Device Markup Language open-in-new

Handheld Device Markup Language