Lotus Jazz 1.0a for Macintosh Released in 1986 by Lotus Development Corp For Apple Macintosh Plus Image quality: Used Lotus Jazz was a heavily marketed all-in-one integrated office suite that included a word processor, spreadsheet, graphing, database, and communications program. Jazz was targeted as a universal solution for all office workers. Although at release, the program was exclusively for the Apple Macintosh 512k. Despite the marketing effort, it flopped miserably. Although it was from Lotus, the spreadsheet was not related to Lotus 1-2-3. Lotus Jazz motivated Microsoft to purchase Mouseworks that became Microsoft Works. These images are from a used set of disks. Presumably they came together, so a Mac 512k would continue to use 1.0, while the Mac Plus would use 1.0a, and they would share the same startup and primer disk. The 1.0 program disk is copy protected, while the 1.0a program disk appears to not be copy protected. Important: The 1.0 program disk is copy protected. To create usable disk images, you must create floppy disks with the provided Kryoflux, SuperCard Pro, or Transcopy images. Protection type: Intentionally bad CRC on track 11, sector 0. Archive includes four 3.5" macintosh formatted floppy disks. Three are single sided 400k and one is double sided 800k.