• _{Error Prevention}
• _{line conditioning}
• _{repeater/amplifiers}
• _{adaptive protocols}
• _{Error Detection}
• _{parity (look at fig. 3-6 on page 71)}
• _{weak solution}
• _{LRC (look at fig. 3-8 on page 72)}
• _{how is this check accomplished?}
• _checksums
• _{lets go through example (page 72)}
• _{CRC-16 and CRC-32 use prime number divisors that produce 16 and 32 bit remainders}