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Whatever Happens to Old Computers? You have just got a new computer and you are delighted with it.It is doing everything you wanted your new computer to do.But what are you going to do with your old computer? Have you ever wondered what other people do with their old computers? In the past they have often paid high prices for their old computers, but how much do you think these computers are worth now? Few people want to buy a computer that has become out of date or has been replaced by a newer model.Unfortunately, the only thing you can do with a computer that you have had for five or six years is to throw it away with your other garbage! What do many people do when they try to sell their old computers? Foolishly, they take into account its original cost and then reduce the price according to the age of the computer rather like a second-hand car.They are wrong.They forget that new computers are becoming cheaper every day, making old computers almost worthless~ In 1985, for example, a good computer cost over US $4,000.Ten years later its owner would he lucky to get $400. Although old computers are still more useful than old typewriters, you must be careful about buying a second-hand computer.The microchips in a computer may last a long time, but the hard disk will not.It will probably cost more to replace the hard disk with a new one than the computer itself is worth.Moreover, replacing the old processor in a computer is simply not worth the trouble as it will probably be incapable of running newer software.Ultimately, saving and repairing an old computer is like building a car from spare parts.It is far cheaper to buy a new car. One well-known computer magazine recently compiled a list of ten things to do with an old computer.One suggestion was to donate it to charity or give it as one of the small prizes ina competition.The final suggestion was to store it in a safe place and hope that it would become a collector's item in fifteen or twenty years though the article in the magazine admitted that.in fifteen or twenty years there may be so many old computers that they will all be worthless. Whatever you decide to do with an old computer will not alter the fact that it will be useless as a piece of technology in several years.The world of computers is quickly changing and eventually all computers will not only be integrated with video telephone and run CD ROM disks, but will also be able to perform. a countless number of tasks which as yet we cannot even imagine.All these uses will require much more advanced and powerful machines that will automatically condemn even the most advanced computer today to the garbage can of the twentieth century. 第 41 题 According to the passage, if a computer is old, you'd better____.
A.
repair it
B.
throw it away
C.
sell it at a high price
D.
put it in a safe place for future use
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【简答题】乘积(a 1 +a 2 +a 3 )(b 1 +b 2 +b 3 +b 4 )(c 1 +c 2 +c 3 +c 4 +c 5 )展开后共有(    )项。
【简答题】流过元件的电流实际方向与参考方向 时电流为正值;实际方向与参考方向 时电流为负值。
【简答题】连线题.下列省级行政单位的名称与简称对应连线: A、湖北省                    ①湘 B、云南省                    ②甘或陇 C、湖南省                    ③鄂 D、甘肃省                    ④云或滇 E、陕西省                    ⑤粤 F、广东省                    ⑥秦.
【简答题】云南省简称( )或( ),省会( )
【多选题】下列缺乏会引起巨幼红细胞贫血的营养素是( )
A.
维生素B12
B.
尼克酸
C.
叶酸
D.
维生素A
【简答题】案例四、某工程实行限额领料。开工初期下达的测算限额指标不够准确,可能有部分材料 存在浪费空间,因此随着工程施工的不断深入,对项目实施跟踪测定总结经验数据,随时 调整限额指标。 问题: 材料供应中的定额供应,有利于( )。(多项选择题) A.提高企业竞争力 B.建设项目加强材料核算 C.促进材料使用部门合理用料 D.提高材料使用效果 E.加快施工进度 如果没有条件对所有材料进行限额领料,应优先对( ...
【简答题】乘积(a 1 +a 2 +…+a 6 )(b 1 +b 2 +…+b 7 )(c 1 +c 2 +…+c 5 )展开后,共有______项.
【单选题】下列缺乏会引起巨幼红细胞贫血的营养素是( )。
A.
维生素B2
B.
尼克酸
C.
叶酸
D.
维生素A
【多选题】房屋节能工程施工的质量验收,应执行( )等标准。
A.
《建筑工程施工:质量验收统一标准》(GB50300——2001)
B.
《建筑节能工程施工质量验收规范》(GB50411—2007)
C.
《建筑工程施工质量评价标准》(GB/T50375——2006)
D.
《工程建设施工企业质量管理规范》(GB/T50430~2007)
【判断题】标尺的快捷键是CTRL+R.
A.
正确
B.
错误
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