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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

ModeFlowExample
SimplexOne wayKeyboard
Half duplexTake turnsWalkie-talkie
Full duplexBoth at oncePhone 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

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