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CHAPTER 1 INTRODUCTION TO THE WORLD OF COMPUTERS 27 COMPUTER NETWORKS AND THE INTERNET A computer network is a collection of computers and other devices that are connected together to enable users to share hardware, software, and data, as well as to communi- cate electronically with each other. Computer networks exist in many sizes and types. For instance, home networks are commonly used to allow home computers to share a single printer and Internet connection, as well as to exchange files. Small office networks enable workers to access company records stored on a network server, communicate with other employees, share a high-speed printer, and access the Internet (see Figure 1-20). School networks allow students and teachers to access the Internet and school resources, and large corporate networks often connect all of the offices or retail stores in the corporation, creat- ing a network that spans several cities or states. Public wireless networks—such as those available at some coffeehouses, restaurants, public libraries, and parks—provide Internet ...
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