Intro
Objectives
- Understand the need to check for errors after data transmission (2.2.1)
- Describe each of the following error detection methods: (2.2.2)
- Parity check (odd and even)
- Checksum
- Echo check
- Describe how check digits are used in data entry including: (2.2.3)
- ISBN
- Bar codes
- Describe how an automatic repeat query (ARQ) is used to establish data is correctly received (2.2.4)