Word: two-way
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...this forces the faculty to be able to adapt, and learn from past teaching experiences, Fisher says. He is convinced that such two-way interaction is essential for Harvard's continued success...
...marriage of two such powerful partners is certain to accelerate the conversion of modern cable TV into the two-way, interactive system that will allow consumers to order movies, browse through store merchandise, send pictures of the kids to Grandma, make phone calls and request a wide variety of information services -- all by pushing buttons on their TV remote controls. Time Warner officials now say it will take five years -- not 10, as previously estimated -- for these new services to be rolled out to the company's 7.1 million cable subscribers...
...signals poised to flow through it. In cable TV, the roadblocks are the long cascades of amplifiers that run from the company's transmission headquarters to the home, boosting the signal every quarter-mile or so. These amplifiers are notoriously unreliable and generate so much electronic noise that two-way traffic in a cable-TV system is all but impossible...
...signal to within a few blocks of each home and coaxial cable to carry it the rest of the way, the cable companies could get a "twofer": they could throw away those cranky amplifiers (giving them a system that has more capacity and is easier to maintain) and get two-way interactivity almost cost- free...
...phone companies, with their background in point-to-point switching, tend to focus on connectivity and anything that will rack up message units. They emphasize services that will generate a lot of two-way traffic, such as video phones, video conferencing and long-distance access to libraries...