The Computer and Mass Communication I am writing this essay on a Macintosh computer, a machine that replaces the gears and levers of a typewriter with a microprocessor, electronic circuitry, software, and a display screen. On the floor is a modem, which lets my computer talk to other computers over the phone lines. There are more than 30 million people on the Internet whom I could reach via modem if I knew their electronic- mail address. I check my E-mail; I'm carrying on several electronic conversations about this essay, and about other topics. I check a few bulletin boards (there are tens of thousands I might look in on; I keep up to date ....

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Number Of Pages: 17

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