Borland SideKick

A suite of TSR utilities that could be classified as a Personal Information Manager.

History
Initially released in 1984 for DOS and became a surprise hit for Danish software publisher Borland, who sold over a million copies of the first release. Although software was developed for Sidekick in it's original DOS version, there was for a time something resembling and SDK for it available, and there was some scope for development for the later Windows versions of the software, the extreme simplicity of the OS/2 PM version of it and the lack of an API meant that it was never used for OS/2 development.

During 1989 IBM gave a free copy of Sidekick with every copy of OS/2 they sold in certain jurisdictions.

Versions

 * DOS
 * 1.0 introduced in 1984
 * 1.56 - last 1.x release sold on its own
 * 1.58a (1988)
 * 2.0 (1990)


 * Sidekick Plus (DOS)
 * 1.0 - introduced in 1987
 * 1.0a - Bugfix released in 1988


 * Macintosh
 * Sidekick 1.0 for Mac was released in 1985 as the first Macintosh product from Borland.


 * SideKick for PM
 * 1988: SideKick 1.0
 * 1989: SideKick 1.01
 * Sidekick 2.0
 * Requires OS/2 1.1 or higher.