The VTG Power Up! Calendar Creator Plus Version 5.0 is a vintage PC software designed for creating calendars on MS-DOS operating systems. This software, produced by Power Up!, is compatible with both 3.5" and 5.25" floppy disk formats and is written in English. Made in the United States, this unit is a sought-after collectible for computer enthusiasts looking to experience the functionality of early computer software on their vintage PCs.