Nintendo 64-bit system began its life known as Project Reality.
The system was to be designed by Nintendo and Silicon Graphics. Later
Nintendo decided the final name of the system ULTRA 64. Here you can
see the first official photo of the system that Nintendo showed
together with some interesting demos. In the picture we can easily
see that the system and cartridge design was already finalized. The
logo was pretty cool too and I prefer it to the logo
actually used. Ultra 64 was to be used in USA and Europe only
since Nintendo planned to distribute it in Japan with a different
name: Ultra Famicom.
The system and a cartridge. <Click on the picture to see it bigger>
Later the name was changed for several reasons: Nintendo 64 was the easier name Nintendo decided to use!
And here is the system as it was showed later. Note the design of the joypad: the stick was bigger than the actual one