The Lisa (pictured at right) was named after Steve Job’s daughter and was first introduced in early 1983. It worked on a Motorola 68000 at 5 GHz. The Operating System was called LisaOS and paved the way to the first Macintosh computer.
The Mac Plus landed in early 1986, two years after the original Macintosh 128k and just over a year after the 512k. This computer saw another increase in RAM – it now came with 1 MB of RAM although this was expandable to a whopping 4 MB.