Basic geometry: Manual for teachers by George David Birkhoff, Ralph Beatley

By George David Birkhoff, Ralph Beatley

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Still, there might not always be a computer available when you need one, and you could probably afford your own computer with what you’ll spend on Hawaiian Mocha and scones. 4 The Web page of a cyber café. 2 30 Chapter 2 • Copy Shop—Many full-service print/copy shops, such as Kinko’s, also offer Internet terminals for rent at reasonable rates. In general, the compromises you must make to enjoy these alternatives makes them poor long-term substitutes for having your very own computer and Internet account.

The discussion is carried out through a series of typed messages; each participant types his or her contributions, and anything anyone in the room types shows up on the screen of everyone else in the room. In addition to chat, there are other ways to have a live conversation over the Internet. You can also have live text and voice chats through any of several different “instant messaging” programs that enable you to not only chat, but also find out which of your friends are currently online and up for a gab session.

This is a legitimate complaint, as are the reports that the online services sometimes tend to supply slow, unreliable Internet access. But to be completely fair, many ISPs also get overloaded, and may be burdened by busy signals and poor performance, too. Whomever you choose, you must be prepared for the possibility you’ll get fed up and switch. You can’t expect any provider to be perfect. But the possibility of losing subscribers is the only incentive for providers to continually improve. Also, try to avoid signing long-term contracts with providers; these deals can cause you great pain if the provider fails to give the level of service you expect.

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