The first is the Initial Public Offering--the time Apple Computer became a publicly-traded company--an enormous milestone in any company's history. In Apple's case, the offering was based on their vision of the Apple II computer (1977) and how it would soon be in homes, schools and offices around the world. The second document is about the very first Macintosh computer (1984) and how it fit in with other Apple and competitor's products. Both of the rare documents are presented here for the first time.
I very rarely post things here before poring over them — how else would I know they were worth sharing? — but I think it's a safe assumption that these documents are well worth the link.