Chapter 1Getting Started

A lot of the buzz around Node.js is focused on the Web. In truth, Node serves a bigger purpose that people often miss. Let’s see where Node fits in the broader scheme of things by making a map.

Imagine the universe of all possible programs as an immense sea. Programs that have similar purposes are near to each other, and programs that differ are further apart. With that picture in mind, take a look at the following figure. It shows a close-up of one particular outcrop in this sea, the Island of I/O-Bound Programs.

images/map.png
Figure 1. Map of the Island of I/O-Bound Programs

I/O-bound programs are constrained by data access. These ...

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