I would recommend following some of the previous posts on this site when searching for what to gather for exam resources. I hardly used the large EERM but did use the DORF electrical engineering reference book. The EERM seems to cover material like other textbooks might, giving you the theory but stopping short on what might actually be tested.
AND to complete my review of the EERM, the book was geared for the old exam and will not be nearly enough to help you for the new Computer depth.