Editing Data center (section)

=== Raised floor ===
[[File:Floor Panel Bottom Perf.jpg|thumb|right|Perforated cooling floor tile]]
{{Main|Raised floor}}
A raised floor standards guide named GR-2930 was developed by [[Telcordia Technologies]], a subsidiary of [[Ericsson]].<ref>{{cite web|title=GR-2930 - NEBS: Raised Floor Requirements|url=https://telecom-info.njdepot.ericsson.net/site-cgi/ido/docs.cgi?ID=SEARCH&DOCUMENT=GR-2930&}}</ref>

Although the first [[raised floor]] computer room was made by [[IBM]] in 1956,<ref name=IBM>{{Cite web|url=http://ed-thelen.org/comp-hist/RaisedFloor-or-Non-Raised-Floor.pdf|title=Data Center Raised Floor History}}</ref> and they've "been around since the 1960s",<ref>{{Cite web|url=https://www.accessfloorsystems.com/index.php/raised-floor-info/tips-for-ordering-replacement-raised-floor-tiles.html|title=Raised Floor Info &#124; Tips for Ordering Replacement Raised Floor Tiles|website=www.accessfloorsystems.com}}</ref> it was the 1970s that made it more common for computer centers to thereby allow cool air to circulate more efficiently.<ref>{{cite book|title=Data Center Handbook|url=https://books.google.com/books?isbn=1118436636|isbn=978-1118436639|author=Hwaiyu Geng|date=2014| publisher=John Wiley & Sons }}</ref><ref>{{cite web|url=http://www.facilitiesnet.com/hvac/article/HVAC-The-Challenges-and-Benefits-of-Under-Floor-Air-Distribution-Systems--3516|author=Steven Spinazzola|date=2005|website=FacilitiesNet.com|title=HVAC: The Challenge And Benefits of Under Floor Air Distribution Systems|access-date=2018-10-28|archive-date=2017-03-29|archive-url=https://web.archive.org/web/20170329235344/http://www.facilitiesnet.com/hvac/article/HVAC-The-Challenges-and-Benefits-of-Under-Floor-Air-Distribution-Systems--3516|url-status=live}}</ref>

The first purpose of the raised floor was to allow access for wiring.<ref name=IBM/>