Opty -I thought the foot notes were pertinent. Esp. 27

25 The parties agree that a person of ordinary skill would understand “central” processing
unit to refer to a processing unit, and that the word “central” does not necessarily connote the
primary processor in a particular hierarchy.
26 See, e.g., MODERN DICTIONARY OF ELECTRONICS 107 (7th ed. 1999) (defining a CPU as
“[t]hat unit of a computing system that fetches, decodes, and executes programmed instructions and
maintains the status of results as the program is executed”).
27 (See, e.g., ‘890 Patent, Col. 8:22-24 (“The DMA CPU 72 controls itself and has the ability
to fetch and execute instructions. It operates as a co-processor to the main CPU 70 (FIG. 2) for time
specific processing.”).)

28 (‘890 Patent, Col. 1:52-58.)
29 (‘890 Patent, Col. 2:2-5.)