IBM 305 RAMAC (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "IBM 305 RAMAC" in Japanese language version.

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1trailing-edge.com

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ed-thelen.org

Weik (March 1961). “IBM 305 RAMAC”. ed-thelen.org. 2019年1月12日閲覧。
“RAMAC 305 Customer Engineering Manual of Instruction”. IBM Corp., © 1959. pp. 7–8 and 85. 2019年1月12日閲覧。

eweek.com

Preimesberger, Chris (2006年9月8日). “IBM Builds on 50 Years of Spinning Disk Storage”. eWeek.com 2012年10月16日閲覧。

ibm.com

www-03.ibm.com

650 RAMAC announcement The 305 RAMAC and the 650 RAMAC were internally announced on September 4, 1956.

newsweek.com

Steven Levy, "The Hard Disk That Changed the World" Newsweek, August 7, 2006

nytimes.com

timesmachine.nytimes.com

I. B. M. TO PUT OUT NEW 'THINK' UNITS, New York Times, September 14, 1956

trailing-edge.com

bitsavers.trailing-edge.com

305 RAMAC Manual of Operation, IBM, April 1957.

youtube.com

IBM RAMAC promotional film