老码工懂新人不懂的老技术，老技术产品往往还在一些公司关建作用，需要人来看护

偶原住对门的老中是VISA的老扣伯码工（COBOL/IBM），60多岁了还在工作。很多新人可能不懂COBOL，IBM的东西。但实际上还在很多传统公司运转关键的系统。另一例是 B OF A。 老码工不嫌恶心，挪个地方，工作还是有的。只要不嫌恶心，要看懂别人的扣的和虫子，擦别人的屁股：—）不是啥另人愉悦的事。可是医生还不是成天面对病人，病痛伤， 也不见得另人愉悦哈。 人家钱多也是一种补偿，来一个病人就是进多少钱，病痛伤越重进钱越多。否则是多另人恶心的事儿。

https://en.wikipedia.org/wiki/COBOL

COBOL programs are used globally in governments and businesses and are running on diverse operating systems such as z/OS, VME, Unix and Windows. In 1997, the Gartner Group reported that 80% of the world's business ran on COBOL with over 200 billion lines of code and 5 billion lines more being written annually.^[94]

Near the end of the 20th century, the year 2000 problem (Y2K) was the focus of significant COBOL programming effort, sometimes by the same programmers who had designed the systems decades before. The particular level of effort required to correct COBOL code has been attributed^{[by whom?]} to the large amount of business-oriented COBOL, as business applications use dates heavily, and to fixed-length data fields. After the clean-up effort put into these programs for Y2K, a 2003 survey found that many remained in use.^[95] The authors said that the survey data suggest "a gradual decline in the importance of Cobol in application development over the [following] 10 years unless ... integration with other languages and technologies can be adopted".^[96]

In 2006 and 2012, Computerworld surveys found that over 60% of organizations used COBOL (more than C++ and Visual Basic .NET) and that for half of those, COBOL was used for the majority of their internal software.^[7][97] 36% of managers said they planned to migrate from COBOL, and 25% said they would like to if it was cheaper（虚拟语气，=NOT CHEAP，TRIED AND FAILED AND WASTED BILLIONS ）. Instead, some businesses have migrated their systems from expensive mainframes to cheaper, more modern systems, while maintaining their COBOL programs （至少熬到CEO/CIO退休，难题留给下任傻瓜）.^[7]