Do both LINK 480Z and CARDboard Illustrative Aid to Computation both involve computers?
LINK 480Z The LINK 480Z was an 8-bit microcomputer produced by Research Machines Limited in Oxford, England, during the early 1980s.
Document A document is a written, drawn, presented, or memorialized representation of thought. The word originates from the Latin "documentum", which denotes a "teaching" or "lesson": the verb "doceō" denotes "to teach". In the past the word was usually used to denote a written proof useful as evidence of a truth or fact. In the computer age, "document" usually denotes a primarily textual computer file, including its structure and format, e. g. fonts, colors, and images. Contemporarily, "document" is not defined by its transmission medium, e. g., paper, given the existence of electronic documents. "Documentation" is distinct because it has more denotations than "document". Documents are also distinguished from "realia", which are 3 dimensional objects that would otherwise satisfy the definition of "document" because they memorialize or represent thought; documents are considered more as 2 dimensional representations.