Data Flow

• Simplex Communication - one-way communication or unidirectional. One device can transmit, and the other device will receive.
• Examples of Simplex:

  • keyboards
  • traditional monitors
• Half-Duplex Communication - two-way communication or bidirectional (not at the same time). If one device is sending, the other can only receive, and vice versa.
• Examples of Half-Duplex:

  • Walkie-talkies
• Full Duplex Communication - also two-way communication or bidirectional, but simultaneously. Device can send and receive at the same time.
• Examples of Full Duplex:

  • telephone line