I own a small coffee shop.
My expense is proportional to resources
100 square feet of built up area with utilities, 1 barista, 1 cup coffee maker.
My shop's capacity
Serves 1 customer at a time, takes 3 minutes to brew a cup of coffee, a total of 5 minutes to serve a customer.
Since my barista works without breaks and the German made coffee maker never breaks down,
my shop's maximum throughput = 12 customers per hour.
Read full article from Intuitively Showing How To Scale a Web Application Using a Coffee Shop as an Example - High Scalability -
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