IBM Simon
Designing the User Experience at Autodesk. Autodesk. 2012年11月23日時点のオリジナルよりアーカイブ。2012年11月23日閲覧。
↑ “IBM's Plans to Ship Simon Put On Hold for Time Being”. Mobile Phone News (CBS Interactive). (1994-04-04). ISSN 0737-5077. オリジナルの2012-05-26時点におけるアーカイブ。. https://archive.is/W6Ru 2012年6月30日閲覧. "Technical issues, resulting from the integration of Simon's cellular faxing capability, were discovered early in the manufacturing and development cycle as IBM's quality assurance testing was being conducted. IBM will hold up shipments of the device until the bugs are worked out."
↑ “Ericsson GS88 Preview”. Eri-no-moto (2006年). 2011年12月15日閲覧。
↑ “Penelope Box”. Stockholm Smartphone (2010年). 2011年12月15日閲覧。
↑ US patent 5537608, Brent A. Beatty; Francis J.
"The CPU is a 16-bit x86-compatible processor running at 16 MHz, a single-chip design manufactured by Vadem. Simon runs a version of DOS called ROM-DOS, from Datalight..."
↑ “Bellsouth, IBM Unveil Personal Communicator Phone”. Mobile Phone News (CBS Interactive). (1993-11-08). ISSN 0737-5077. http://findarticles.com/p/articles/mi_m3457/is_n43_v11/ai_14297997/ 2012年6月30日閲覧. "The phone currently is based on an AMPS standard..."
↑ “BellSouth - IBM Simon PDA Cellphone”. RetroCom. RetroCom. 2012年6月30日閲覧。 “Graphic display: 160 x 293”
↑ Schneidawind, John (1992年11月23日). “Poindexter Putting Finger on PC Bugs; Big Blue Unveiling”. USA Today (Gannett Company): p. 2B. ISSN 0734-7456
↑ Bradner, Erin (2011年7月21日). “Are You an Innovation Giant?”.