[inforoots] Origin of the IBM 1130 Name

[utleyb at aol.com]

 As the Product Manager for the 1130 I can't tell you what the rational was for selecting "1130". The fathers in the DP Product Group and Corporate Marketing made the final decision but never revealed to my knowledge the rational for the number. The 1800 was christened the same way.
 
 Brian Utley 
    
 -----Original Message-----
 From: BillWorthington at comcast.net
 To: inforoots at computerhistory.org
 Sent: Mon, 30 Oct 2006 9:34 AM
 Subject: Re: [inforoots] Origin of the IBM 1130 Name
 
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    Hi, Bill.
 
 My five cents...
 
 I'm not sure what the logic was in selecting machine numbers back in the 1960s. There did see to be some order to it however. I believe that they were all assigned by the product marketing folks in White Plains. Development had their own names for unannounced machines like NS, FS, Shark, etc. (This was good because some of them never saw the light of day.)
 
 I seem to remember hearing that the 70xy machines were the "high-powered" machines. Those numbered with the odd numbers (701, 7030, 7070, 7090) representing the more scientific (academic) marketplace and the even numbers were perhaps more business related (7040, 7080). The last digit changed when there were improvements with the same processor -- 7044, 7072, 7094, etc. (This falls apart slightly when I remember the bank I worked for planned to install a 7070 to do commercial banking applications.)
 
 Machine numbers beginning with a 1 were priced lower and had much smaller processing power. Included here were the 1401/1440/1460/1240 and 1620/1710. In the mid 1060s, the 1800 and 1130 were introduced using some of System/360 technology. The 1130 was to address the 1620 marketplace and the 1800 the 1710. (There were a lot of communications devices in the 10xx number range too -- 1050, 1060 families come to mind.) 
 
 System/360 came along and most of its machine numbers were in the 2000 range. Processors began with 20xx, disk with 23xx, tape with 24xx, card I/O with 25xx, remote I/O with 27xx, control units with 28xx. (29xx was reserved for RPQ devices which became a bit more main line.) System/370 used the 3000 range of numbers.
 
 Things went a bit wild in the late 1970s when the 8100 and 4300 were announced. There are a lot in the 9000 range today -- which had been reserved for RPQ devices.
 
 I believe that there is a problem today with some machine numbers being recycled -- as some of the "printer company" devices show.
 
 But to answer your question why "1130" was chosen, I have no idea why that set of numbers was selected. Hopefully, someone else may have better insight. Regards, Bill 
 
 Bill Selmeier wrote: ======================================= 
 
 Posts to inforoots at computerhistory.org is information known to or the opinions of the poster. All posts to inforoots at computerhistory.org are archived. By posting to this list you grant a license for use of this material to the Computer History Museum located in Mountain View, California, USA. 
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 With the upcoming IBM1130.org annual party coming up, I'm curious as to how this machine got its name? 
 
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 Bill Selmeier voice (408)655-3400 
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