Offices with 10 or fewer computers can inexpensively share files and printers by establishing a peer to peer network. Computers with Windows 95 or higher have all the software necessary for networking, including simple E-mail services.

Offices with more than 10 computers usually require a dedicated server (Windows Server, Linux, etc.). Offices that require server security to limit access to sensitive data also require a dedicated server.

Local networks can also provide Internet access to all computers relatively inexpensively. Many Internet Service Providers (ISP) provide High Speed Internet service.