1. What is a start bit, and with which type of serial transmission is a start bit used? 2. Which type (or types) of serial transmission is appropriate for video transmission? For a keyboard connection...

1. What is a start bit, and with which type of serial transmission is a start bit used?

2. Which type (or types) of serial transmission is appropriate for video transmission? For a keyboard connection to a computer?

3. When two humans hold a conversation, do they use simplex, half-duplex, or full-duplex transmission?

4. When using a synchronous transmission scheme, what happens when a sender does not have data to send?