Wireless Application Protocol Bitmap Format
The Wireless Application Protocol Bitmap format (short wireless bitmap or WAP Bitmap called) is a file format for graphics that are optimized for mobile devices. They have the file extension .wbmp .
A WBMP image is a raster graphic with a color depth of only 1 bit . Each pixel can either be filled (black) or not filled (background color of the mobile device).
history
In the early days of the mobile Internet , many devices still had a black and white screen - so they could usually only display two states on the screen. Furthermore, the mobile Internet used to be very slow with GSM dial-up, and it was customary to be billed based on the downloaded megabytes for which a tariff applied. So at that time there was a need for the smallest possible image files, and the Wireless Application Protocol Bitmap Format was created for this.
The format has long since become obsolete, as significantly higher speeds, different types of accounting, color and touchscreens , significantly larger memory, and even more efficient and sometimes more functional competition made the format unnecessary.
Nowadays it is only used to a subordinate extent in graphic calculators or embedded systems .
See also
- Windows Bitmap (BMP)
Individual evidence
- ↑ 4.3.3. Mobile multimedia data formats - section in the compendium Medieninformatik: Mediennetze , on page 272; by Roland Schmitz , Roland Kiefer , Johannes Maucher , Jan Schulze and Thomas Suchy , published in 2006 by Springer-Verlag Berlin Heidelberg ; ISBN 978-3-540-30224-7 ; using the Google Book Search to find
- ↑ WBMP - The graphic format for WAP - at ASPheute , probably published on June 13, 2000