system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout] I comprehend that the platinum chip was probably very difficult to make, but why couldn't House just program a new software update in the 281 years between the bombs and New Vegas?
gpt
He was in a coma for 61 of those years, for starters.

Beyond that, given what a pragmatist House is, it's likely that simply creating a new chip/OS simply wasn't possible with what he had to hand, or else he would have done so. 

The chip itself wasn't made in Vegas, but a place called Sunnyvale; it's possible they had specific expertise, software, and/or hardware that House himself didn't have in Vegas and which was lost in the War. House says that he "designed" the chip, but he clearly needed someone else to put the physical hardware and software together for him. We know he has a brilliant mind, but that doesn't mean he had the ability to write an entirely new and improved software from scratch by himself, while he was contained within his stasis pod.