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Now that we have traced the devlopment of operating systems from the first hands-on systems through multiprogrammed and time-shared systems to PCs and handheld computers, we can give a brief overview of how such system are used in a variety of computing enviornment setting.
Traditional computing
As computing matures, the lines among many of the traditional computing environments are blurring. consider the "typical office environment." Just with servers providing file and print service. Remote access was awkward, and portibillity was achieved by laptop computers carrying come of the user's workspace. Terminals attached to mainframes were prevalent at many campanies as well, with even fewer remote access and portibillity options.

the current trend is toward more ways to access these environments
web technologies are streching the boundries of traditional computing companies implement portals which provide web accessibility to their internal servers Network computers are essentially terminals that understand web-based computing. Handheld computers can synchronize will pc to allow very portable use of company information. They can also connect to wireless networks to use the company's web portal(as well as the myriad other web resources.)

At home, most users had a single computer with a slow modem connection to the office, the Internet, or both Network connection speeds Once attainable only at great cost are now avilable at low cost allowing more access to more data at a company or from the Web. Those fast data connection are allowing home computers to serve up web pages and to contains their own networks with printers. client PCs, and servers. some homes even have firewells to protect these home environment from security breaches. Those firewell cost thousands of dollars a few years ago, and did not even exist a decade ago.