1) a) RAID stands for b) CD-RW stands for . c) DVD stands for d) RAID (2nd version) stands for e) List three major properties of RAID Implementations: 2) a) Explain the magnetic disk memory structure, read/write mechanisms, and layout using figures, etc. b) Explain the optical disk memory structure, read-write mechanisms, and layout using figures, etc. c) Explain "the constant linear velocity", "the constant angular velocity". "multiple zone recording", and "serpentine recording" concepts. d) Explain the solid state drive memory technologies (on the other side of the paper)