Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Electrical Engineering question!?!?
1.) A modem connects to a phone line with data rate of 56.6 k bits per second. How long does it take to download (a) 2 megabits of information?
(b) 2 megabytes of information?
Please explain,
Thank you
3 Answers
- RichardLv 69 years agoFavorite Answer
There is more to this question than simple math. In computers, 'mega' is 1,048,576 not one million. Also, the Federal Communications Commission (FCC) limits telephone speed to 53,333 bits per second for uncompressed data.
One byte of data also includes a start bit and a stop bit for a total of 10 bits not 8.
But we will just use your numbers.
2097152/56600= 37.05 seconds for 2 megabits.
2097152*10= 20,971,520 bits.
20971520/56600= 370.52 seconds or 6.175 minutes.
Source(s): http://lowendmac.com/56k/hype.shtml - RogerLv 79 years ago
2 megabits is 2,097,152 bits. A modem operating at a data rate of 56.6 k bits will download the file in about 37 seconds.
The 2 megabyte file has 8 times the bits since a byte is 8 bits. It will take 296 seconds or just under 5 minutes to download the file.
- Newton1LawLv 69 years ago
2,000,000/56600 = 35.34 seconds
One byte = 8 bits so 2,000,0000 bytes is 16,000,000 bits so
16,000,000/56,600 = 282.68 seconds = 4.7 minutes
Hope this helps,
Newton1Law