The Silicon Jungle by David H. Rothman

7. How many printers and other gizmos will people share, and where will

they go? Presumably, you don’t want a printer five hundred feet from the people feeding their files into it. You also should decide how many expensive, letter-quality printers you need and how many cheapies like dot matrixes. Make up your mind—before your office wastes $4,000 on a second laser printer when just one might do. The same idea might apply to high-speed modems if your network allows computers to share them.