The unauthorized (未经授权的) copying of computer programs by American businesses alone deprived software publishers of $1.6 billion last year, a figure that swells to nearly $ 7.5 billion when overseas markets are included. "Industry’s loss on a global (67) is astonishing", says Ken Wasch, head of the US software Publishers Association. (68) first glance, software piracy (盗版) seems no different from (69) of any other copyrighted materials. But software is not really like other intellectual (70) . Books and videotapes can be copied only by (71) that are relatively (72) and expensive, and the product is (73) quite as good as the original. Software, on the other hand, is easily (74) , and the result is not a scratchy second- generation copy (75) a perfect working program. The rapid growth of electronic networks only (76) the problem, for it allows anyone with a computer and a modem to (77) software silently and instantaneously. More than 90 countries around the world are already (78) to the Internet, a global network that reaches a(n) (79) 25 million computer users. How to (80) this increasingly rampant(猖獗的) piracy The publisher’s first (81) was to control it through technical means: by putting (82) in their programs (83) prevented users from copying them. This (84) worked for a while, or at least until determined pirates found ways to (85) it. (86) the codes also made it difficult for legitimate users to copy programs onto their hard drives.

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