Question

Calculate the total number of bits transferred if 200 pages of ASCII data are sent using asynchronous serial data transfer. Assume a data size of 8 bits, 1 stop bit, and no parity. Assume each page has 80x25 of text characters.

Answer 1

4000000 bits

Step-by-step explanation:

The serial port configuration in asynchronous mode actually assumes a data size of 8bits, 1 start bit, no parity and 1 stop bit.

Therefore 8+1+1 = 10 bits.

This means that for every eight bits of data, ten bits are sent over the serial link — one start bit, the eight data bits, and the one stop bit)

We also know that there are 200 pages of ASCII data using asynchronous serial data transfer and each page has 80*25 of text characters.

Therefore the total number of bits transferred:

200*80*25*10 = 4000000 bits