Mobile software is designed to run on handheld computers, personal digital assistants (PDAs), enterprise digital assistants (EDAs), smartphones and cellphones. Since the first handheld computers of the 1980s, the popularity of these platforms has risen considerably. Many cellphone models of the late 2000s include the ability to run user-installed software.
See the article on Mobile development for lists of the differences between the various mobile software platforms, in chart format. A list of app stores and application download volumes per mobile platform can be found in the article list of digital distribution platforms for mobile devices.
The dominant mobile software platform is Java (in its incarnation as “Java Platform, Micro Edition”, “Java ME”, or formerly “J2ME” ). Java ME runs atop a Virtual Machine (called the KVM) which allows reasonable, but not complete, access to the functionality of the underlying phone. The JSR process serves to incrementally increase the…