Question

Книга содержащая 20 страниц текста(на каждой стр 30 строк,в каждой строке 40 символов),была передана модемом за 2 минуты.Определите скорость передачи данных модемом и выразите ответ в битах/секунду

Answer 1

Ну если она была закодирована в ASCII то (Если в Unicode в 2 раза больше) : 

То 1 символ = 1 Байт

1)1*8*40*30*20=192000 (бит)

2)192000/120=1600(бит/сек) 

Ответ 1600 бит/сек

 

Answer 2

Calculation of Data Transmission Speed

To determine the data transmission speed of the modem, we need to calculate the total number of bits transmitted and divide it by the time taken.

Given: - Number of pages: 20 - Number of lines per page: 30 - Number of characters per line: 40 - Time taken: 2 minutes

To calculate the total number of bits transmitted, we need to find the total number of characters in the book and multiply it by the number of bits per character.

The total number of characters in the book can be calculated as follows: Number of characters per page = Number of lines per page * Number of characters per line Total number of characters = Number of pages * Number of characters per page

The number of bits per character depends on the encoding used. Assuming ASCII encoding, each character requires 8 bits.

Let's calculate the total number of bits transmitted:

Number of characters per page = 30 * 40 = 1200 characters Total number of characters