Has anyone taken a Comptia Network + reference manual and/or a CCNA reference manual in for the Computer dicipline of the PE test? How about the Comptia A+ reference manual. If so, was it helpful? I noticed that a lot of the Computer section of the EERM involves material that was covered in my CCNA bootcamp such as network architectures and binary, hex, decimal convertions. My Network + bootcamp discussed alot of hardware and software legacy and modern systems. When I took the A+ class, it dealt a lot with hardware.