Context: Since 1996, they have been archiving cached pages of web sites onto their large cluster of Linux nodes. They revisit sites every few weeks or months and archive a new version if the content has changed. Sites can also be captured on the fly by visitors who are offered a link to do so. The intent is to capture and archive content that otherwise would be lost whenever a site is changed or closed down. Their grand vision is to archive the entire Internet.

Question: What operating system is used on Wayback Machine's servers?
Answer: Linux

Question: When does Wayback Machine save a copy of a website?
Answer: if the content has changed

Question: What is the ultimate aim of the Wayback Machine?
Answer: to archive the entire Internet

Question: What operating system is used on the internet's servers?
Answer: Unanswerable

Question: When does the internet save a copy of a website?
Answer: Unanswerable

Question: What is the ultimate aim of the visitors?
Answer: Unanswerable

Question: Where can sites be captured by Linux clusters?
Answer: Unanswerable

Question: What Linux nodes are hoped to be captured?
Answer: Unanswerable