They are arranged the way they are because of the QWERTY layout. It was used to slow down how people typed so they wouldn't get the typewriter jammed. Hope this helps. :)
D I think because none of the others seem like very important things,
I do not know spanish please say in english
Kinda of both. The processor, memory, hard drive and displays are all standard components and are provided by a variety computer competent manufacturers (except for the processors which are all supplied by Intel). Yet - while many components are standard - NO, the core, hardware components, like logic boards (motherboard), video cards, and other specialty components (some display connectors and displays, for example) are propriety Apple designs.
