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/20110106225454/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/mca
MCA (Micro Channel Architecture) is an IBM developed expansion bus that enables the fitting of extra cards on a computers motherboard. Examples are USB, Firewire or SCSI.