Q26,p3,d14. How many characters per second (7 bits + 1 parity) can be transmitted over a 3200 bps line if the transfer is asynchronous ? (Assuming 1 start bit and 1 stop bit)

(A) 300 (B) 320

(C) 360 (D) 400

Answer B.

 Explanation

One character needs (7+1+1+1)=10 bits.

A line can transfer 3200 bits/sec hence it can accommodate 320 characters/s.