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Kenbak-I Digital Computer, 1971No. 0185, by Kenbak Corporation, Los Angeles, California, 8-bit.
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Kenbak-I Digital Computer, 1971
No. 0185, by Kenbak Corporation, Los Angeles, California, 8-bit. 256-byte, with original chips date-coded 1971, motherboard designation "Kenbak 1000 Rev. B", power supply, fifteen switches and lights, in blue-painted metal case with original chrome side bars and rear label "Kenbak Corporation, Los Angeles, Calif., Kenbak-1 Digital Computer, Part 10017, Revision (blank), Serial Number 0185", approx. 19 ¼ x 11 ½ x 4 ¼ in. (49 x 29 x 11 cm). - In addition: September 1971 issue of "Scientific American". Kenbak-I No. 0185 comes from the first and only production run of fifty computers produced by Kenbak Corporation. Since the serial numbers commenced with 167, this particular machine was nineteenth in the sequence. The computer was cleaned and tested by Vintage Micros in March 2015. According to the evaluation report, Kenbak-I No. 0185 is in unusually well-preserved original functioning condition, with no evidence of defective or replacement components. The report made special note of the motherboard designation "Kenbak 1000". A copy of this report accompanies the lot. Please note that, though in working condition, this computer should be operated by a qualified technician. Catalogue Notes: John Blankenbaker began his designs for a computing device that could calculate using logarithms while he was a first year physics student at Oregon State College. In 1958 he published his description of the machine in an article titled "Logically Microprogrammed Computers" and in 1970 decided to build an affordable computer for personal use. In the early days of the office computer even a small device cost thousands of dollars whereas Blankenbaker's goal was a simple computer that would cost no more than $500. His criteria were that the computer should be educational, give user satisfaction with simple programmes and demonstrate as many programming concepts as possible. The result was the Kenbak-I, the first commercially available personal computer. The 8-bit machine offered 256 bytes and input and output via switches and lights. The first advert appeared in the September 1971 issue of "Scientific American" with a price of $750 ($250 more than Blankenbaker had hoped for - but still a modest price) and the caption: "Fun Educational Modern Electronic Technology created the Kenbak-I with a price that even private individuals and small schools can afford...Step-by-step you can learn to use the computer with its three programming registers, five addressing modes, and 256 bytes of memory. Very quickly you, or your family or students, can write programs for fun and interest." Kenbak-I pre-dated Apple I by five years and, unlike most 'hobbyist' computers of the time, was sold as an assembled and functioning machine rather than as a kit. It was a well-designed and professionally-produced computer that outstripped the first Apple in terms of usability, but is virtually unknown today. Of the 50 units produced between 1971 and 1973, only 10 are thought to have survived. Why did Apple Inc. succeed where Kenbak Corporation failed? The answer lies in the marketing. The Kenbak-I was perhaps too good. Since its accessibility made the computer seem like a perfect teaching tool, Kenbak Corporation focused marketing on schools rather than the private individuals who would appreciate the "fun aspects" of computing. Unfortunately for Blankenbaker and his five investors, the university students and young professionals who made up Apple's customer base (in 1979 as well as today) were to prove a more viable market. After only a limited response, production ceased and the Kenbak Corporation closed down in 1973. As a posthumous nod of recognition, Steve Wozniak and a panel of other judges voted Kenbak-I "the first commercially available personal computer" at the Boston Computer Museum in 1987. - A technically important milestone in computing history. References: www.kenbak-1.net website of the late John
No. 0185, by Kenbak Corporation, Los Angeles, California, 8-bit. 256-byte, with original chips date-coded 1971, motherboard designation "Kenbak 1000 Rev. B", power supply, fifteen switches and lights, in blue-painted metal case with original chrome side bars and rear label "Kenbak Corporation, Los Angeles, Calif., Kenbak-1 Digital Computer, Part 10017, Revision (blank), Serial Number 0185", approx. 19 ¼ x 11 ½ x 4 ¼ in. (49 x 29 x 11 cm). - In addition: September 1971 issue of "Scientific American". Kenbak-I No. 0185 comes from the first and only production run of fifty computers produced by Kenbak Corporation. Since the serial numbers commenced with 167, this particular machine was nineteenth in the sequence. The computer was cleaned and tested by Vintage Micros in March 2015. According to the evaluation report, Kenbak-I No. 0185 is in unusually well-preserved original functioning condition, with no evidence of defective or replacement components. The report made special note of the motherboard designation "Kenbak 1000". A copy of this report accompanies the lot. Please note that, though in working condition, this computer should be operated by a qualified technician. Catalogue Notes: John Blankenbaker began his designs for a computing device that could calculate using logarithms while he was a first year physics student at Oregon State College. In 1958 he published his description of the machine in an article titled "Logically Microprogrammed Computers" and in 1970 decided to build an affordable computer for personal use. In the early days of the office computer even a small device cost thousands of dollars whereas Blankenbaker's goal was a simple computer that would cost no more than $500. His criteria were that the computer should be educational, give user satisfaction with simple programmes and demonstrate as many programming concepts as possible. The result was the Kenbak-I, the first commercially available personal computer. The 8-bit machine offered 256 bytes and input and output via switches and lights. The first advert appeared in the September 1971 issue of "Scientific American" with a price of $750 ($250 more than Blankenbaker had hoped for - but still a modest price) and the caption: "Fun Educational Modern Electronic Technology created the Kenbak-I with a price that even private individuals and small schools can afford...Step-by-step you can learn to use the computer with its three programming registers, five addressing modes, and 256 bytes of memory. Very quickly you, or your family or students, can write programs for fun and interest." Kenbak-I pre-dated Apple I by five years and, unlike most 'hobbyist' computers of the time, was sold as an assembled and functioning machine rather than as a kit. It was a well-designed and professionally-produced computer that outstripped the first Apple in terms of usability, but is virtually unknown today. Of the 50 units produced between 1971 and 1973, only 10 are thought to have survived. Why did Apple Inc. succeed where Kenbak Corporation failed? The answer lies in the marketing. The Kenbak-I was perhaps too good. Since its accessibility made the computer seem like a perfect teaching tool, Kenbak Corporation focused marketing on schools rather than the private individuals who would appreciate the "fun aspects" of computing. Unfortunately for Blankenbaker and his five investors, the university students and young professionals who made up Apple's customer base (in 1979 as well as today) were to prove a more viable market. After only a limited response, production ceased and the Kenbak Corporation closed down in 1973. As a posthumous nod of recognition, Steve Wozniak and a panel of other judges voted Kenbak-I "the first commercially available personal computer" at the Boston Computer Museum in 1987. - A technically important milestone in computing history. References: www.kenbak-1.net website of the late John
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Kenbak-I Digital Computer, 1971
No. 0185, by Kenbak Corporation, Los Angeles, California, 8-bit. 256-byte, with original chips date-coded 1971, motherboard designation "Kenbak 1000 Rev. B", power supply, fifteen switches and lights, in blue-painted metal case with original chrome side bars and rear label "Kenbak Corporation, Los Angeles, Calif., Kenbak-1 Digital Computer, Part 10017, Revision (blank), Serial Number 0185", approx. 19 ¼ x 11 ½ x 4 ¼ in. (49 x 29 x 11 cm). - In addition: September 1971 issue of "Scientific American". Kenbak-I No. 0185 comes from the first and only production run of fifty computers produced by Kenbak Corporation. Since the serial numbers commenced with 167, this particular machine was nineteenth in the sequence. The computer was cleaned and tested by Vintage Micros in March 2015. According to the evaluation report, Kenbak-I No. 0185 is in unusually well-preserved original functioning condition, with no evidence of defective or replacement components. The report made special note of the motherboard designation "Kenbak 1000". A copy of this report accompanies the lot. Please note that, though in working condition, this computer should be operated by a qualified technician. Catalogue Notes: John Blankenbaker began his designs for a computing device that could calculate using logarithms while he was a first year physics student at Oregon State College. In 1958 he published his description of the machine in an article titled "Logically Microprogrammed Computers" and in 1970 decided to build an affordable computer for personal use. In the early days of the office computer even a small device cost thousands of dollars whereas Blankenbaker's goal was a simple computer that would cost no more than $500. His criteria were that the computer should be educational, give user satisfaction with simple programmes and demonstrate as many programming concepts as possible. The result was the Kenbak-I, the first commercially available personal computer. The 8-bit machine offered 256 bytes and input and output via switches and lights. The first advert appeared in the September 1971 issue of "Scientific American" with a price of $750 ($250 more than Blankenbaker had hoped for - but still a modest price) and the caption: "Fun Educational Modern Electronic Technology created the Kenbak-I with a price that even private individuals and small schools can afford...Step-by-step you can learn to use the computer with its three programming registers, five addressing modes, and 256 bytes of memory. Very quickly you, or your family or students, can write programs for fun and interest." Kenbak-I pre-dated Apple I by five years and, unlike most 'hobbyist' computers of the time, was sold as an assembled and functioning machine rather than as a kit. It was a well-designed and professionally-produced computer that outstripped the first Apple in terms of usability, but is virtually unknown today. Of the 50 units produced between 1971 and 1973, only 10 are thought to have survived. Why did Apple Inc. succeed where Kenbak Corporation failed? The answer lies in the marketing. The Kenbak-I was perhaps too good. Since its accessibility made the computer seem like a perfect teaching tool, Kenbak Corporation focused marketing on schools rather than the private individuals who would appreciate the "fun aspects" of computing. Unfortunately for Blankenbaker and his five investors, the university students and young professionals who made up Apple's customer base (in 1979 as well as today) were to prove a more viable market. After only a limited response, production ceased and the Kenbak Corporation closed down in 1973. As a posthumous nod of recognition, Steve Wozniak and a panel of other judges voted Kenbak-I "the first commercially available personal computer" at the Boston Computer Museum in 1987. - A technically important milestone in computing history. References: www.kenbak-1.net website of the late John
No. 0185, by Kenbak Corporation, Los Angeles, California, 8-bit. 256-byte, with original chips date-coded 1971, motherboard designation "Kenbak 1000 Rev. B", power supply, fifteen switches and lights, in blue-painted metal case with original chrome side bars and rear label "Kenbak Corporation, Los Angeles, Calif., Kenbak-1 Digital Computer, Part 10017, Revision (blank), Serial Number 0185", approx. 19 ¼ x 11 ½ x 4 ¼ in. (49 x 29 x 11 cm). - In addition: September 1971 issue of "Scientific American". Kenbak-I No. 0185 comes from the first and only production run of fifty computers produced by Kenbak Corporation. Since the serial numbers commenced with 167, this particular machine was nineteenth in the sequence. The computer was cleaned and tested by Vintage Micros in March 2015. According to the evaluation report, Kenbak-I No. 0185 is in unusually well-preserved original functioning condition, with no evidence of defective or replacement components. The report made special note of the motherboard designation "Kenbak 1000". A copy of this report accompanies the lot. Please note that, though in working condition, this computer should be operated by a qualified technician. Catalogue Notes: John Blankenbaker began his designs for a computing device that could calculate using logarithms while he was a first year physics student at Oregon State College. In 1958 he published his description of the machine in an article titled "Logically Microprogrammed Computers" and in 1970 decided to build an affordable computer for personal use. In the early days of the office computer even a small device cost thousands of dollars whereas Blankenbaker's goal was a simple computer that would cost no more than $500. His criteria were that the computer should be educational, give user satisfaction with simple programmes and demonstrate as many programming concepts as possible. The result was the Kenbak-I, the first commercially available personal computer. The 8-bit machine offered 256 bytes and input and output via switches and lights. The first advert appeared in the September 1971 issue of "Scientific American" with a price of $750 ($250 more than Blankenbaker had hoped for - but still a modest price) and the caption: "Fun Educational Modern Electronic Technology created the Kenbak-I with a price that even private individuals and small schools can afford...Step-by-step you can learn to use the computer with its three programming registers, five addressing modes, and 256 bytes of memory. Very quickly you, or your family or students, can write programs for fun and interest." Kenbak-I pre-dated Apple I by five years and, unlike most 'hobbyist' computers of the time, was sold as an assembled and functioning machine rather than as a kit. It was a well-designed and professionally-produced computer that outstripped the first Apple in terms of usability, but is virtually unknown today. Of the 50 units produced between 1971 and 1973, only 10 are thought to have survived. Why did Apple Inc. succeed where Kenbak Corporation failed? The answer lies in the marketing. The Kenbak-I was perhaps too good. Since its accessibility made the computer seem like a perfect teaching tool, Kenbak Corporation focused marketing on schools rather than the private individuals who would appreciate the "fun aspects" of computing. Unfortunately for Blankenbaker and his five investors, the university students and young professionals who made up Apple's customer base (in 1979 as well as today) were to prove a more viable market. After only a limited response, production ceased and the Kenbak Corporation closed down in 1973. As a posthumous nod of recognition, Steve Wozniak and a panel of other judges voted Kenbak-I "the first commercially available personal computer" at the Boston Computer Museum in 1987. - A technically important milestone in computing history. References: www.kenbak-1.net website of the late John
136th Specialty Auction: Science & Technology | Fine Toys & Automata
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1) The auction is carried out voluntarily under foreign name and on account of the customer.
2) The goods to be sold in the auction can be and risk of the interested client. They will be put up for auction in the conditions as examined and checked at determined times before the auction – under the full responsibility they are without any liability for visible or hidden defects as well as for attributes; later claims of any kind cannot be taken into consideration. The description in the catalogues are made to the best of our knowledge, but they are no guaranteed attributes in the sense of § 459 and following BGB. – Information
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– Astrid & Uwe Breker –
Special notice:
Description of lots are supplemented by additional information (from/to) about usual prices on the international collectors’ market in order to provide a yardstick for any customers. The indicated dates are the years of market introduction of the specific models.
The “Breker-Scale” distinguishes between optical (external) and technical (functional) condition on a scale from 1 to 6 (“very good” to “deficient”) and is described in brackets as follows: (3/2), meaning: optical “3” (satisfactory) and technical “2” (good). The evaluation of condition is defined as follows:
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All these informations are worked out seriously but without any guarantee. Technical apparatus, cameras and lenses are offered as collectors’ items – without any guarantee for the mechanical or electrical function. We will
describe faults which we realized. We don’t check electrical machines, apparatus, batteries, photographical accessories (as lightmeters, rangefinders or selftimers etc.) – No right of return of any sold item, therefore please use the advantage of the previewing (also by your friends).
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