The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Web wide crawl with initial seedlist and crawler configuration from October 2010
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20110106190943/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/computer
A Computer in the strictest sense is a programmable machine that will act under instruction. Nowadays a computer is thought of as a PC, laptop or Mac, but in truth the monitor, mouse and keyboard are not part of this.