"wave division multiplexing.The newest trans-Atlantic cable can handle 2.4 million voice conversations at one time -or hundreds of thousands of compressed video images.The China-U.S.project will handle 4 million calls at once. 8 Lucent Technology Inc.,one of the leading fiber optic companies,unveiled the latest breakthrough.The ability to transmit as many as 10 million calls over a single fiber by dividing the strand into 80 separate wavelengths of light instead of 16.Lucent says the cable's 400-gigabit (billions of computer instructions per second)speed is enough to carry the world's Internet traffic at any given time on one fiber.One voice phone call requires 64, 000 bits.Is there any limit to the capacity increase?"Absolutely not,said Neil Tagare, Project Oxygen's founder and an undersea fiber veteran,"There is in sight." 9 And as the boom in fiber-optics continues,the cost of fiber decreases.Each voice circuit in a pre-fiber trans-Atlantic cable in 1987 cost about $40,00 annually to build and maintain,Mr.Kessler said.Today,the cost has dropped to roughly to $100 to $200 per circuit,he said.The plunging costs,combined with deregulation and competition in phone markets,have made distance meaningless in communications-and the price of calls. 10 Aboard the C.S.Global Link,Captain Jones remains very busy.The ship returned to Blatimore from the Arabian Sea and Indian Ocean,after dropping 2,000 miles of cable from Bombay to Malaysia as part of another major project,called Fiber Link Around the Globe.Before Bombay,it helped to lay Atlantic Crossing,covering 3,557 miles of fiber-optic cables at an average speed of 6 knots over 21 days.It takes less than two months to install a trans-Atlentic cable.Ships use computers that are programmed to follow a specific route using global positioning satellite navigation systems.The routes are chosen after careful undersea topographical surveys that consider such factors as underwater earthquake faults, canyons and shipping and fishing routes."If global links continue to grow as they have in the last decade,it's going to get kind of crowded down there,"says Jones. Questions 11-20 are based on Passage 2. 11.Tyco International Ltd. A.is a company which owns many ships B.is a telephone and Internet company C.is a company in charge of Project Oxygen 923"wave division multiplexing. " The newest trans-Atlantic cable can handle 2. 4 million voice conversations at one time - or hundreds of thousands of compressed video images. The China-D. S. project will handle 4 million calls at once. 8 Lucent Technology Inc. • one of the leading fiber optic companies. unveiled the latest breakthrough. The ability to transmit as many as 10 million calls over a single fiber by dividing the strand into 80 separate wavelengths of light instead of 16. Lucent says the cable's 400-gigabit (billions of computer instructions per second) speed is enough to carry the world' s Internet traffic at any given time on one fiber. One voice phone call requires 64. 000 bits. Is there any limit to the capacity increase? "Absolutely not." said Neil Tagare. Project Oxygen's founder and an undersea fiber veteran , "There is in sight. " 9 And as the boom in fiber-optics continues. the cost of fiber decreases. Each voice circuit in a pre-fiber trans-Atlantic cable in 1987 cost about $ 40.00 annually to build and maintain , Mr. Kessler said. Today , the cost has dropped to roughly to $ 100 to $ 200 per circuit , he said. The plunging costs, combined with deregulation and competition in phone markets, have made distance meaningless in communications - and the price of calls. 10 Aboard the C. S. Global Link , Captain Jones remains very busy. The ship returned to Blatimore from the Arabian Sea and Indian Ocean , after dropping 2 ,000 miles of cable from Bombay to Malaysia as part of another major project , called Fiber Link Around the Globe. Before Bombay , it helped to lay Atlantic Crossing. covering 3 ,557 miles of fiber-optic cables at an average speed of 6 knots over 21 days. It takes less than two months to install a trans-A 向ntic cable. Ships use computers that are programmed to follow a specific route using glob~l positioning sa臼llite navigation systems. The routes are chosen after careful undersea topographical surveys that consider such factors as underwater earthquake faults , canyons and shipping and fishing routes. "If global 1inks continue to grow as they have in the last decade , it's going to get kind of crow(ied down there ," says Jones. Questions 11-20 are based on Passage 2. 11. Tyco International Ltd. • A. is a company which owns many ships B. is a telephone and Internet company C. is a company in charge of Project Oxygen 923