Berkeley Softworks
The company that wrote Graffiti and a similar scheme for the Commodore 64 (made it very Macintosh-like) and the Commodore 128 (which could multitask).
MegaLexica
The company that wrote Graffiti and a similar scheme for the Commodore 64 (made it very Macintosh-like) and the Commodore 128 (which could multitask).