KwickClips Computer Systems · 40 sec · free
Does RFID need touch?
Short answer. No.
Do passive tags need a battery?
No.
RFID
| Tag: chip and antenna |
| Reader: sends radio waves |
| Tag replies with its ID |
Remember
| No touch needed |
| Passive tags: no battery |
How does FASTag pay the toll without stopping? It uses RFID. The tag is a chip with an antenna. The reader sends radio waves. The tag replies with its ID. Remember. No touch is needed. Passive tags need no battery.
This clip is from the full lesson: Mobile Computing, RFID, Biometrics and Green Computing — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Computer Applications (165), GSEB Std 11 Computer Studies, GSEB Std 11 Computer Studies, GSEB Std 11 Computer Studies
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