Word: digitales
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Dick Tracy's famed wrist radio may be making its way to retail stores. Last week the Japanese watchmaker Seiko introduced a digital timepiece that can display long-distance messages received over FM radio waves. Like conventional beepers, the $275 Receptor MessageWatch can signal its wearer to call the office...
Penrose's first major point is that the human mind can reach insights that are forever inaccessible to computers. The reason is that all digital computers operate according to algorithms, or sets of rules that prescribe how to solve problems. Yet there are problems that cannot be approached by any...
Mathematician Alan Turing made a related discovery in the 1950s when he used his Turing machine -- an imaginary, simple computer -- to prove that there are some mathematical problems that are solvable but that cannot be solved even in principle by a digital computer. Says Penrose: "The very fact that the...
Then Japanese sources surprised even Motorola officials by leaking word that the company had scored a still more prestigious victory. After a fierce six- month competition with Japanese and European rivals, Motorola was selected to provide the digital voice technology for the Japanese telephone network's next generation of cellular...
To be effective, the OTH radar system had to be huge. The signals are sent from three transmitting antennas, each more than 1,095 meters (3,600 ft.) long, in Moscow, Me. Some 175 km (110 miles) away, in Columbia Falls, are three receiving antennas, each stretching nearly 1,520...