By the late 1960s such bodies of digitized alphanumeric information, known as bibliographic and numeric databases, constituted a new type of information resource.
Some of the most notable roadways in the region are trails, sometimes known as highways known only by alphanumeric numbers, snaking atop mountain ridges.
However, techniques exist to bypass these filters and manipulations; alphanumeric code, polymorphic code, self-modifying code and return-to-libc attacks.
