Collecting, such as:

• Collecting data for a communication system involves generating the data to be transmitted

The phone as the collection device with voice mail:

• Phone allows users to leave/listen to voicemail
  • Can also be used for bill paying/product ordering
• Collecting includes giving the user many options, and they press a number on the keyboard for what option they want
• Users can also respond verbally, as there may a pause for caller to answer

EFTPOS terminal as the collection device for electronic banking:

• data is collected from the card i.e. bank number, amount to be transferred etc.
• users can input data into the eftpos terminal keypad i.e. PIN
• A customer can input PIN, transaction amount, receive (output) receipt, make cash withdrawals, and transfer funds
  • Involves selecting account and entering PIN
• Data is generated by inserting card or typing on keypad. This is sent to bank’s computer
  • Data collected from main bank server and is displayed on the Visual Display Unit (VDU)

Processing, including:

• In Communication Systems, processing data is the manipulation of data
• It must be converted into a suitable form for transmission (encoding and decoding)

Encoding and decoding analog and digital signals: