Because some of these programs use dates to make calculations, sort, and search, they too can be effected by the Y2K computer problem. The best way to find out about the Y2K status of a piece of software is to contact its manufacturer. You probably won't have to replace your software, but you may have to reinstall it, or change the way it is set up. The Apple computer's operating system appears to be immune to the Y2K problem because they record the year-date differently. As we have seen, PCs record the date 1999 as 99, and that will cause problems when the calendar rolls over to the year 2000.
Apple computers use a four-digit year date.
The year 1999 and 2000 are recorded as 1999 and 2000, rather than 99 and 00. But, Apple software may be affected by the problem, so it may be wise to test it anyway.