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'''SciSys Explorer''', (Explorer Chess)<br/>
along with '''Olympiade''', '''Companion II''' and , '''Concord I, II''' and '''Electronic Chess Mark 8''', a series of [[Saitek|SciSys]] [[Dedicated Chess Computers|dedicated chess computers]] released from 1983 to 85. The computers had the [https://en.wikipedia.org/wiki/Hitachi Hitachi] [[6800|HD6301V1]] [https://en.wikipedia.org/wiki/Microcontroller microcontroller] with 4 Kibi [[Memory#ROM|ROM]] and 256 byte [[Memory#RAM|RAM]] in common, running the [[6800]] branch of the [[LogiChess]] program by [[Kaare Danielsen]] at a [https://en.wikipedia.org/wiki/Clock_rate clock frequency] of 3.6 resp. 7.2 MHz. A model similar to the Companion II was sold by [https://en.wikipedia.org/wiki/RadioShack RadioShack] as ''Tandy 1650'' <ref>[https://www.schach-computer.info/wiki/index.php/Tandy_1650 Tandy 1650] from [https://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>.
The SciSys Explorer was Danielsen's '''first''' commercial LogiTech release <ref>[https://www.schach-computer.info/wiki/index.php/Danielsen,_Kaare Danielsen, Kaare] from [https://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>,
running at 3.6 MHz. The Explorer had an integrated travel sensory pegboard, while the other models were tabletops with press [[Sensory Board|sensory boards]].
The '''Companion II''' ran at 7.2 MHz and had [[Pondering|permanent brain]] implemented. The computer was released in 1984.
A revised version of the '''Companion II''' was released by [https://de.wikipedia.org/wiki/Quelle_(Versandhandel) Quelle] in Germany. A model similar to the Companion II was sold by [https://en.wikipedia.org/wiki/RadioShack RadioShack] as '''Tandy 1650''' <ref>[https://www.schach-computer.info/wiki/index.php/Tandy_1650 Tandy 1650] from [https://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>.
=Concord=
The rare '''Concord''' ran at 3.6 MHz, the '''Concord II''', released in 1985, at 7.2 MHz with [[Pondering|permanent brain]].
* [[Explorer]]
* [[LogiChess]]
=Forum Posts=
* [https://hiarcs.net/forums/viewtopic.php?t=7004 Kaare Danielsen Comparisons] by [[The Spacious Mind]], [[Computer Chess Forums|Hiarcs Forum]], January 14, 2015
=External Links=
* [http://www.chesscomputeruk.com/html/olympiade.html Olympiade] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]
* [http://www.chesscomputeruk.com/html/electronic_chess_mark_8.html Electronic Chess Mark 8] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]
* [https://www.schach-computer.info/wiki/index.php/SciSys_Electronic_Chess_Mark_8 SciSys Electronic Chess Mark 8] from [https://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [https://www.schach-computer.info/wiki/index.php/Tandy_1650 Tandy 1650] from [https://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
