Pre internet you would do the same thing with your computer every day for 15 years and then buy a new one, you could load the same version of MS Word 15 years l

Pre internet you would do the same thing with your computer every day for 15 years and then buy a new one, you could load the same version of MS Word 15 years later no problem. But when you're dealing with the rest of the world, a) you need to keep up, people send you Word n+15 compatible files, b) you want to access new websites, and c) you don't want to get hacked. If you want to run your offline computer for 15 years, that still works today