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## Baud Rate vs Bit Rate

### Formulas

**Bit Rate = Baud Rate x Bits per Symbol**

**Throughput = Bit Rate x Data Bits / (Data + Overhead Bits)**

UART at 9600 baud with 8N1 framing: 9600 bps gross, 7680 bps effective (80% efficient due to start/stop bits).

Esempio Risolto

UART at 9600 baud, 1 bit/symbol, 8 data bits, 2 overhead bits (start + stop).

  1. Gross bit rate = 9600 x 1 = 9600 bps
  2. Effective = 9600 x 8 / 10 = 7680 bps
  3. Efficiency = 8 / 10 = 80%