Beginning of Essay
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 ove ....

Middle of Essay
.... And as I do my work, I almost always have the radio on, picking a station from dozens of possibilities of broadcast entertainment and news. There is an astonishing electronic information infrastructure surrounding me - surrounding us all. But the electronic part of the information infrastructure is only a tiny fraction of what's available to me. Every morning the newspaper is thrown into the driveway. The paper is an amazing achievement, more than one hundred pages of news, data, photographs, and advertisements pulled over electronic threads from around the world, processed, organised, and delivered. Every day at about noon the mailman brings mail ....