Sierra Systems

Founded: 1980

Headquarters:

Oakland, California, USA

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Sierra Systems (shall not be confused with the Canadian IT services and consulting firm Sierra Systems Group Inc.^[1]^[2]), is a company founded in 1980 in Oakland, California by Electrical Engineer, Inventor and Video Games Industry pionner Larry Rosenthal^[3]^[4] (Lawrence David Rosenthal).

Larry was a 17 years old student^[5] at the Massachusetts Institute of Technology (MIT), when he saw in 1962, for the first time Spacewar! running on a PDP-1 Computer. Impressed with what he saw Larry created in 1973 his own processor and computer^[6] built with surplus parts obtained from a run-down store near the Oakland airport called Mike Quinn Electronics^[7] thus creating his home version of Spacewar!. He called his invention the Vectorbeam System^[8], which turned to be the first coin-op video game to make use of a vector display.

He licensed^[5] his new invention to Cinematronics, a pioneering arcade game developer, based in El Cajon, California that had its heyday in the era of vector display games, who released it in 1977^[5] as Space Wars^[9]. Discontent with the royalties received Larry quit Cinematronics taking with him the "Vectorbeam System"^[10] in the Spring of 1978 to form his own company called Vectorbeam^[9]^[11]^[12] (named after his creation) but after facing huge financial problems and being pressed to sell the Patents of his invention by Cinematronics Larry finally gave up and sold^[13] the company with the patents back to them in 1979.

After exiting the video game field, Larry founded Sierra Systems in 1980, producing^[14] embedded systems development tools, one of them, the Sierra 68000 C Compiler, was largely used in the early 90's in 68000-based applications ranging from navigational systems to printer applications and video games.

Currently, Larry Rosenthal trades as KeyRinger, LLC.^[15]^[16]^[17], focusing in the sale of one of his last inventions, a lost key finder and remote control locator called KeyRinger XL™ (an improved version of the original KeyRinger™^[18]^[19]).

External links

References

[https:.2F.2Farchive.fo.2FOKkNS-1] [ https://archive.fo/OKkNS https://archive.fo/OKkNS]

[https:.2F.2Farchive.fo.2F8gaWH-2] [ https://archive.fo/8gaWH https://archive.fo/8gaWH]

[http:.2F.2Fallincolorforaquarter.blogspot.pt.2F2012.2F11.2Fthe-ultimate-so-far-history-of.html-3] ttp://allincolorforaquarter.blogspot.pt/2012/11/the-ultimate-so-far-history-of.html

[http:.2F.2Fwww.vectorlist.org.2FVectorlist.2F1997.2F08.2F0229.html-4] [ http://www.vectorlist.org/Vectorlist/1997/08/0229.html http://www.vectorlist.org/Vectorlist/1997/08/0229.html]

[:File:CashBox_US_1977-11-12.pdf_p52-5] 5.0 ^5.1 ^5.2 File:CashBox US 1977-11-12.pdf, page 52

[http:.2F.2F4.bp.blogspot.com.2F-QhFAsymdwNk.2FU8VTZdYBR5I.2FAAAAAAAADEM.2Fzi7Ine41IrM.2Fs1600.2Flr.PNG-6] ttp://4.bp.blogspot.com/-QhFAsymdwNk/U8VTZdYBR5I/AAAAAAAADEM/zi7Ine41IrM/s1600/lr.PNG

[http:.2F.2Fallincolorforaquarter.blogspot.pt.2F2013.2F07.2Fdave-needle-and-jerry-lawon-two-early.html-7] ttp://allincolorforaquarter.blogspot.pt/2013/07/dave-needle-and-jerry-lawon-two-early.html

[https:.2F.2Fpaleotronic.com.2Fwp-content.2Fuploads.2F2018.2F09.2Frats2.jpg-8] ttps://paleotronic.com/wp-content/uploads/2018/09/rats2.jpg

[:File:Syzygy_US_01.pdf_p4-9] 9.0 ^9.1 File:Syzygy US 01.pdf, page 4

[http:.2F.2F1.bp.blogspot.com.2F-3a-ud4rIanQ.2FU8VTdNcXHHI.2FAAAAAAAADEY.2FA4OnvHj1Ung.2Fs1600.2Flr1.PNG-10] ttp://1.bp.blogspot.com/-3a-ud4rIanQ/U8VTdNcXHHI/AAAAAAAADEY/A4OnvHj1Ung/s1600/lr1.PNG

[:File:CashBox_US_1979-01-06.pdf_p28-11] File:CashBox US 1979-01-06.pdf, page 28

[:File:CashBox_US_1979-01-13.pdf_p29-12] File:CashBox US 1979-01-13.pdf, page 29

[:File:CashBox_US_1979-06-30.pdf_p48-13] File:CashBox US 1979-06-30.pdf, page 48

[https:.2F.2Fallincolorforaquarter.blogspot.com.2F2012.2F11.2Fthe-ultimate-so-far-history-of_26.html-14] ttps://allincolorforaquarter.blogspot.com/2012/11/the-ultimate-so-far-history-of_26.html

[:File:KeyRinger_LLC_Registration_2014-03-04_.28California_Secretary_of_State.29.pdf_p-15] File:KeyRinger LLC Registration 2014-03-04 (California Secretary of State).pdf

[:File:KeyRinger_LLC_Statement_of_Information_2014-06-02_.28California_Secretary_of_State.29.pdf_p-16] File:KeyRinger LLC Statement of Information 2014-06-02 (California Secretary of State).pdf

[:File:KeyRinger_LLC_Statement_of_Information_2018-03-26_.28California_Secretary_of_State.29.pdf_p-17] File:KeyRinger LLC Statement of Information 2018-03-26 (California Secretary of State).pdf

[:File:KeyRinger_.282001.29.jpg_p-18] File:KeyRinger (2001).jpg

[https:.2F.2Fweb.archive.org.2Fweb.2F20030812081952.2Fhttp:.2F.2Fwww.keyringer.com.2Finstructions.html-19] ttp://www.keyringer.com/instructions.html (Wayback Machine: 2003-08-12 08:19)

[:File:Patent_Assignment_Cover_Sheet_2013-12-12_.28United_States_Patent_and_Trademark_Office.29.pdf_p10-20] File:Patent Assignment Cover Sheet 2013-12-12 (United States Patent and Trademark Office).pdf, page 10

[https:.2F.2Fweb.archive.org.2Fweb.2F20030618025919.2Fhttp:.2F.2Fkeyringer.com.2F-21] ttp://keyringer.com/ (Wayback Machine: 2003-06-18 02:59)

[:File:Patent_US8451127.pdf_p10-22] File:Patent US8451127.pdf, page 10

[:File:TheNationalLocksmith_US_2003-12.pdf_p45-23] File:TheNationalLocksmith US 2003-12.pdf, page 45

[:File:KeyRingerXL.jpg_p-24] File:KeyRingerXL.jpg

[:File:KeyRingerXL1.jpg_p-25] File:KeyRingerXL1.jpg

[:File:KeyRingerXL2.jpg_p-26] File:KeyRingerXL2.jpg

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Sierra Systems

From Sega Retro

External links

References