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Choosing a modem
When selecting a modem, look for one with fast data-transfer speed, a
compatible modem cable, and good bundled software.
Data-transfer speed
The data-transfer speed determines how fast a modem can move data
between your computer and other computers. Purchase the fastest modem
that you can afford, particularly if you plan to connect to the World Wide Web.
Many Web pages contain graphics, video, and sound files that will take longer
to download (copy onto your computer) with a slower modem.
The data-transfer speed of a modem is specified in kilobits per second (kbps)
or bits per second (bps). Faster modems transfer data to and from your
computer more quickly than slower ones. The following table describes the
current modem speeds that are available.
Modem speed Usage
33,600 bps The fastest modem available (as of this writing) for use with standard
(33.6 kbps) analog telephone lines. Suitable for World Wide Web use.
28,800 bps Slightly slower than a 33.6 kbps modem, but still very suitable
(28.8 kbps) for World Wide Web use.
14,400 bps Only half as fast as a 28.8 kbps modem. May be acceptable for
(14.4 kbps) text-oriented applications such as e-mail or terminal emulation.
9600, 4800, Too slow for most purposes.
and 2400 bps
Modem cable
If you purchase a modem that is designed for use with a Macintosh, it will
probably include a Macintosh-compatible modem cable. If you have to
purchase a cable separately, make sure it supports hardware handshaking, a
protocol that controls the flow of data between computers. Also, check to
make sure the cable has a rounded connector that will fit the modem port on
the back of your computer (labeled with a W icon). A cable designed for use
with a Windows- or DOS-compatible computer won’t work with your
Macintosh.
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Chapter 4