The Handheld Device Markup Language (HDML) is a

markup language A markup language is a Encoding, text-encoding system which specifies the structure and formatting of a document and potentially the relationships among its parts. Markup can control the display of a document or enrich its content to facilitate au ...

intended for display on handheld computers,

information appliance An information appliance (IA) is an appliance that is designed to easily perform a specific electronic function such as playing music, photography, or editing text. Typical examples are smartphones and personal digital assistants (PDAs). Inf ...

smartphone A smartphone is a mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multi ...

s, etc.. It is similar to

HTML Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets ( ...

, but for

wireless Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided transm ...

and handheld devices with small displays, like PDA,

mobile phone A mobile phone or cell phone is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones ( landline phones). This rad ...

s and so on. It was originally developed in about 1996 by Unwired Planet, the company that became Phone.com and then

Openwave Openwave Systems Inc. (formerly software.com, phone.com, and Libris, Inc.) is a division of Enea. It provides video traffic management and 5G mobile products. Two of Openwave's former products launched as private companies; Openwave Mobility ...

. 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 WML, which then replaced HDML in practice. Unlike WML, HDML has no support for scripts.

References

Markup languages Internet properties established in 1996 Mobile web {{markup-languages-stub

See also

References