I have a few favourite pieces of software. The first is ClarisWorks which was an office suite consisting of a Word Processor, Spreadsheet, Database system and graphics module. Claris was the ‘in house’ software division at apple during the 90’s. Later versions were also available for the PC and the files were useable cross platform.
Next up for me was Filemaker Pro. This was an excellent GUI driven and very powerful piece of database software. The databases could be shared multi user over an apple talk network. A specific server application was also available to increase performance. Again like ClarisWorks later editions were cross platform compatible.
My final application was PageMaker originally from Aldus but later bought by Adobe. The GUI took on its main rival Quark Xpress. Files from the MAC were also cross platform capable.