Today in Apple history: Macintosh 512K, aka the ‘Fat Mac,’ quadruples the memory

On September 10, 1984, Apple shipped the Macintosh 512K, aka the “Fat Mac.” It was the first upgrade to the original Macintosh 128K.
On September 10, 1984, Apple shipped the Macintosh 512K, aka the “Fat Mac.” It was the first upgrade to the original Macintosh 128K.