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Lot 21

SCELBI-8H Mini-Computer, 1973

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Description

SCELBI-8H Mini-Computer, 1973
By Scelbi Computer Consulting Inc. Milford, Connecticut. The machine has been tested and, apart from a few defective lights, is in good working order. Included in the lot is an archive of original documents: assembly and installation instructions (copyright 1974) for Scelbi system no. 4100-573; Scelbi H-8 circuit diagrams; a file of sales material including several postmarked pricelists and an original brochure for the later Scelbi-8B, two handbooks for the 8008 by Wadsworth (1975); three SCELBAL handbooks; typed transcript of an interview between Jack Rubin, Bob Findley and Nat Wadsworth in 1985 (including confidentiality agreement with signatures of all three); and photocopies of original notes and diagrams by Wadsworth from 1973. – A milestone in computer history, the Scelbi-8H was built by Nat Wadsworth and Bob Findley around the first Intel 8-Bit microprocessor (the so-called "CPU-on-a-chip") in 1973. Within the budget of an average person (at around $500), the Scelbi can arguably be described as the first true Personal Computer. It was available both in kit-form and as fully-assembled. Like all early computer kits, the Scelbi had neither keyboard nor monitor. Data input was by Dip switches, output by LEDs. – However, despite its pioneering design, the Scelbi was not a financial success; around 200 units were produced, of which only three are estimated to have survived. The firm subsequently withdrew from hardware production in order to concentrate its efforts on software development and handbooks. Scelbi developed the programming language "SCELBAL" for the PC – a variant of BASIC which also ran on the slow Intel 8008. With the introduction of the MITS Altair, with its new Intel 8080 processor and Altair Basic (developed personally by Bill Gates and Paul Allen), the Scelbi was soon superseded. – An extremely rare pioneer computer that made an early and significant contribution to the history of personal computing.

SCELBI-8H, 1973
Ein Meilenstein der Computergeschichte: Der SCELBI-8H wurde 1973 von Nate Wadsworth und Bob Findley rund um den ersten 8-Bit-Mikroprozessor 8008 von Intel konzipiert. Diesen Rechner kann man als einen der absolut ersten Personal Computer bezeichnen: Er war günstig genug (Kaufpreis rd. $ 500) für den privaten Gebrauch. Der SCELBI wurde sowohl als Kit (Bausatz) als auch fertig montiert geliefert. Es wurden nur ca. 200 Stück produziert – somit war der Computer trotz seiner Pionierstellung wirtschaftlich kein Erfolg und ist heute dementsprechend äußerst selten. Die Firma SCELBI zog sich kurz darauf von der Hardware-Herstellung zurück und konzentrierte sich auf Software-Entwicklung und Handbücher. SCELBI entwickelte für den PC die Programmiersprache SCELBAL – eine BASIC-Variante, die auch auf dem sehr langsamen Intel 8008 Chip lief. Mit dem MITS Altair, der den neuen Intel-8080-Prozessor nutzte, und dem Altair-BASIC-Programm (persönlich von Bill Gates und Paul Allen aka Microsoft entwickelt) wurden der SCELBI und SCELBAL sehr rasch verdrängt. Wie alle frühen Rechner besaß der SCELBI keine Tastatur und keinen Monitor. Die Dateneingabe erfolgte via DIP-Schalter. Als Ausgabe fungierten Leuchtdioden. – Ein extrem seltenes Pionierstück der Computer-Geschichte!

Condition

(2/2)
Buyer's Premium

22.3%

Estimate €15,000 – €20,000
Starting Bid €11,500
live auction started on
De Auction
1:00 AM - May 25, 2013
Ended
Auctioneer
Auction Team Breker

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