Virtually all computers and automated systems around the world have only been using two digits in the year field in the voluminous computer code in each system that tells the computer or automated system what to do.

• 实际上，全世界的计算机以及自动化系统的每一个独立系统中指挥计算机或者自动系统如何运行的庞大的计算机程序代码只用两位数来代表年份。