2. Figure 9-1 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

3. Single-bit error Figure 9-2 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

4. Multiple-bit error Figure 9-3 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

5. Burst error Figure 9-4 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

6. Redundancy Figure 9-5 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

7. Figure 9-6 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

8. VRC Figure 9-7 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

9. LRC Figure 9-8 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998

10. VRC and LRC Figure 9-9 WCB/McGraw-Hill  The McGraw-Hill Companies, Inc., 1998