BlackBerry OS

The BlackBerry platform natively supports corporate email, through Java Micro Edition MIDP 1.0 and, later, a subset of MIDP 2.0, which allows complete wireless activation and synchronization with Microsoft Exchange, Lotus Domino, or Novell GroupWise email, calendar, tasks, notes and contacts, when used with BlackBerry Enterprise Server. The operating system also supports WAP 2.0. Updates to the operating system were automatically available from wireless carriers that supported the BlackBerry over the air software loading (OTASL) service. Third-party developers wrote software using the available BlackBerry API classes, although applications that made use of certain functionality needed to be digitally signed. ==Release history==

BlackBerry 9720 The BlackBerry 9720 runs a version of BlackBerry OS 7.1 with updates to the user interface that mimics BlackBerry 10, including a new lock screen, Application Switcher and Music, Pictures, Videos and Phone apps. ==Availability==

While BlackBerry Limited developed and released updated versions of its operating system for each device, individual carriers decided if and when a version was released to their users. BlackBerry OS has now reached end-of-life. Therefore, devices running it are no longer sold new. ==BlackBerry fonts==

The following is a list of fonts included in BlackBerry OS (some are not included in older versions): • Andalé Mono • Arial • BBAlpha Sans • BBAlpha Sans Condensed • BBAlpha Serif • BBCAPITALS • BBCCasual • BBClarity • BBCondensed • BBGlobal Sans • BBGlobal Serif • BBMillbank • BBMillbank Tall • BBSansSerif • BBSansSerifSquare • BBSerifFixed • Comic Sans MS • Courier New • Georgia • Impact • Symbol • Tahoma • Times New Roman • Trebuchet MS • Verdana • Webdings • Wingdings BBAlphaSans and BBAlphaSerif are based on the free software DejaVu fonts. ==BlackBerry Tablet OS==

On September 27, 2010, BlackBerry Limited announced a new unrelated QNX-based platform, BlackBerry Tablet OS, to run on its BlackBerry PlayBook tablet computer. ==See also==