Two computers are connected together through their serial ports and Hyper-termin

Question

Two computers are connected together through their serial ports and Hyper-terminal communication software system. The data communication settings between the two computers are as follows: data transmission speed (bps) = 9600 data bits = 8 Parity bit = even stop bit = 2 start bit =1 If one computer transfers a file size of 38400 bytes to other computer, how many frames of data will be formed for the data transfer. (The answer Is an Integer number) In problem 1, how much is the overall overhead In bits (extra bits transmitted with the file). The answer will be an Integer number Please do not put any comma in your answer.

Explanation / Answer

Solution: 1

So a frame consists of information(data bits) + overhead(startbit, stop bit and parity bit)

S+o we have frame which has data bits of size 8 bits, start bit, 2 stop bits and 1 paritu bits, so size of the frame is 8+2+1+1= 12 bits.

Now file size= 38400 Bytes=38400*8= 307200 bits.

Number of frames= 307200/8= 38400 frames, number of bits are divided by 8 because data bits=8

and file size is all data.

Solution: 2

Overhead in bits= 38400*4= 153600 bits, because 1 start bit, 1 parity bit and 2 stop bit total 4 overhead bits.

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