1. Terminal alat input : 

     - Speaker

  - Microfon

     - Scanner

     - Mouse

   - Keyboad

2. Closter Control :

     - NIC (Network Interface Card)

- Hub atau Concentrator

   - Konektor UTP (RJ-45)

  - Kabel UTP

3. Modem

 4,  transmitter

5.  based front end processor around