By my fault. By my fault. By my grevious fault. Please disregard my blather about the need for the IBM whatever 60. I was the middle-man for a restauranteer whose point-of-sale computer had gorked and jumped to you guys without viewing his layout. Turns out it was a dinky running PC Dos. His 30 employees have been using scratch pads. Forgiveness is begged. .. harry .. > > From: Al Kossow <aek(a)spies.com> > Date: 2003/08/29 Fri PM 11:01:21 EDT > To: classiccmp(a)classiccmp.org > Subject: Re: IBM 60 > > The IBM 360/60 was never really a product.. try again. > > -- > > > BTW, weren't the 360/60 and 360/62 as evanescent as the 64 and 66? And wasn't there > > a 360/70 that also quickly disappeared? > > The original lineup was the 30, 40, 50, 60, 62, and 70, with a vague promise of a 92. > > The 60 and 62 were the same CPU (2060), but different core-memory units (2360 and > 2362). The 70 used hardware similar to the 60 and 62, but was all hard-wired, with no > microprogramming, and used the superior 2362 core. > > The original S/360's took a long time to be delivered, and, a year later, some of the > hardware specs were no longer competitive. The 60 was dropped altogether, and the 62 > and 70 were replaced by the 65 and > 75. Out of them all, only one 62 was ever shipped to a customer. At the same time, > the 92 was dropped, to be replaced by a vague promise of a "90 series", later > realized in the 91, 95, and 195. It was also about this time that the original > 2.0-microsecond 30, with lights in the front like the other 360's, was largely > superseded by the 1.5-microsecond > 75(1), with lights behind a flat panel like a 1401; though the > 76.-microsecond version was never officially discontinued, and was shipped in large > enough numbers that there were 2.0-microsecond 22's offered (the 22's were > reconditioned 30's, offered while the 370/115 and > 77/125 were not yet ready), it was rare (I never saw one). > > But in the meantime, the need for large-scale timesharing had resulted in the > announcement of virtual-memory versions of the 60 and 62, to be called the 64 and 66. > As part of the same restructuring, these were withdrawn a month after they were > announced, to be replaced with the 67. > > Of the original April, 1964, 360's, only the 40 and 50 ended up being shipped in > large numbers.