Andrew S. Tanenbaum (OS) Edition 4 Exercise 5 Question 50 (Page No. 434)

Question

A thin-client terminal is used to display a Web page containing an animated cartoon of size $400\: \text{pixels} \times 160\: \text{pixels}$ running at $10\: \text{frames/sec.}$ What fraction of a $100$-Mbps Fast Ethernet is consumed by displaying the cartoon?

Answer 1

Size of display $=400\times 160 \times 3 \; \text{Bytes} = 192,000 \; \text{Bytes} $

So, at $10 \;\text{fps}$ it will be $=1,920,000 \;\text{Bytes per second} = 15,360, 000 \;\frac{\text{bits}}{\text{sec}}$

Hence, it will consume $15\%$ of the Fast Ethernet.