KwickClips Networks and the Internet · 42 sec · free
Is a walkie-talkie full duplex?
Short answer. No. It is half duplex, because only one person can talk at a time.
Which mode is a keyboard?
Simplex, because it only sends keys to the computer.
Three modes
| Mode | Flow | Example |
|---|---|---|
| Simplex | One way | Keyboard |
| Half duplex | Take turns | Walkie-talkie |
| Full duplex | Both at once | Phone call |
Remember
| Walkie-talkie: half duplex |
| Phone call: full duplex |
Is a walkie-talkie full duplex? No! There are three modes. Simplex flows one way. Half duplex takes turns. Full duplex sends both ways at once. Remember. Walkie-talkie is half duplex. Phone call is full duplex.
This clip is from the full lesson: Data Communication: Components, Bandwidth and Transmission Modes — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083), CBSE Class 11 Information Technology (802), Cambridge IGCSE Grade 9 Computer Science (0478), Cambridge IGCSE Grade 10 Computer Science (0478)
More KwickClips from this lesson
What are the five components?43 sec
Is bandwidth the same as speed?39 sec
Which transmission suits long distances?41 secVoice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.

