Information is very important because it helps us as a society make decisions. Decisions are impossible without information, and we are constantly seeking information in everything we do. Information is important in decreasing our sense of doubt and uncertainty as well.
1. The reason for a photograph being a favorite is the creativity to capture nature in one single frame.
2. Photographs present the aesthetics and ability to view the world from a new perspective. Photographs' main benefit is they associate with the good memories the last for a lifetime
Blogs, even academic and professional, are not usually considered reliable sources. Most importantly, that's because they don't undergo the peer review process, which ensures the quality of the published papers (that they don't publish lies, in simple words).
So usually, you would prefer a published paper.
When then would you use a blog?
One such instance is when you want to find out about a quickly changing field , for example the newest standards in software development. So software engineering is one such field.
Another field is internet protection and security, as the viruses and the ways to defend against them also develop faster than can be published in a paper
Answer:
A 1 MB digital file needs 0.23 seconds to transfer over a channel with bandwidth 10 MHz and SNR 10 dB.
Explanation:
We can calculate the channel capacity using Shannon's Capacity formula:
C = B + log₂ (1 + SNR)
Where C = Channel Capacity
B = Bandwidth of the Channel
SNR = Signal to Noise Ratio
We are given SNR in dB so we need to convert it into a ratio.
= 10log₁₀ (SNR)
10 = 10log₁₀ (SNR)
1 = log₁₀ (SNR)
SNR = 10¹
SNR = 10
So, using Shannon Channel Capacity formula:
C = 10 x 10⁶ log₂ (1 + 10)
C = 34.5 MHz
Total amount of time required to transmit a 1MB file:
1MB = 1 x 8 Mbytes = 8Mb
C = 34.5 MHz = 34.5 Mb/s
Time required = 8Mb/34.5Mb/s = 0.23 seconds
A 1 MB digital file needs 0.23 seconds to transfer over a channel with bandwidth 10 MHz and SNR 10 dB.
