The line chart mentioned above illustrates the sales earned per quarter of three hi-tech companies between 2004 and 2006, measured in billions of dollars.
In general, all three companies increased; however, the iPod’s revenue went up and down several times.
In terms of the sales of Windows, it appears that the revenue of this company is significantly greater than the opponents, nearly 3 billion dollars at the start of the first quarter in 2004. Then, the income slightly raised to 3,75 billion dollars in three years.
Regarding the revenue of Google, this company started approximately at 0,75 billion dollars, and the income rose rapidly to 3,75 billion dollars, the same amount as Windows.
When the revenue of iPod is considered, it can be clearly seen that it fluctuated throughout the survey period, despite starting at the same revenue as Google at 0,75 billion dollars. In the second quarter of 2006, iPod reached a peak of 3.25 billion dollars, right before it dropped heavily down to 1,75 billion dollars.