Finally, the actual photograph which understands what the initial prototype of the iPhone appeared, part of the development process of Apple revealed

A photograph of the prototype used in Apple in 2005 was revealed. This was brought about by employees who worked in the hardware division of Apple in the early 2000s and is said to be offered anonymously because they are afraid to be identified from Apple.

Exclusive: super-early iPhone prototype had 5 "x7" screen, serial port | Ars Technica
http://arstechnica.com/apple/2013/03/exclusive-super-early-iphone-prototype-had-5x7-screen-serial-port/

First of all it is that size that you can see by looking at it. It is 5 inches × 7 inches (12.7 cm × 17.7 cm), and the thickness is about 2 inches (about 5 cm).


Also, unlike the current iPhone, USB, wired LAN, serial port etc can be confirmed. These ports are omitted in the final real machine, but since this picture is a development machine, it seems that these ports were installed due to development necessity.


At that time the development team has not been told not to know that no one finally leaves out these ports, but also how it will change and Apple's development process will continue to change constantly It can be seen that it was in a state.


According to anonymous information providers, OS X was running on this development machine, he said.


The ARM chip looks like Samsung's S3C2410, and the speed is 200 to 233 MHz. In addition, the first iPhone released in 2007 is underclocking the 620 MHz chip and it runs at 412 MHz with its speed lowered.