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The IRS, for instance, processes your tax return on computers that - quite wisely - do not connect to the internet. When your return is submitted, it ends up on storage media which is hauled on carts across the hall to computers that calculate your refund or amount due. You can imagine how much a clever virus writer could make otherwise.

A modem is a modulator/demodulator, which converts between electronic signals and the sounds transmitted by a POTS (Plain Old Telephone Signal) line. Those likes have a top speed of only about 53kbps - too slow for much of anything these days except FAX, which runs at 9600 bps.

Broadband "modems" are not really modems.

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12y ago

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