The ability to expand beyond the limit of a single computer in a single office has expanded the reach of the PC to global proportions. Two technologies have driven this expansion: computer networking and the portable computer. In this chapter, we first take a look at how the networks that link up computers on a global scale are put together. Then we examine the portable computer, whose introduction has allowed users instantaneous access to the computing and networking power of all the latest computer technology anywhere they go.
Although there are no prerequisites for this chapter, it is highly recommended that you be familiar with all aspects of the hardware presented in earlier chapters.