Article View: alt.folklore.computers
Article #620184Re: Important US technology companies sold to foreigners
From: Anne Lynn Wheeler
Date: Wed, 07 Feb 2018 22:50
Date: Wed, 07 Feb 2018 22:50
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3833 bytes
Dan Espen <dan1...@gmail.com> writes: > The IBM 1311 was the predecessor to the IBM 2311. > Same size cabinet, layout, disks. > The key difference was that the IBM 1311 could be > read and written with really simple commands. > On our 1440 we used a 500 character routine to do everything > we needed with the disk. > The IBM 2311 required an entire OS to use. CMS had a 64kbyte OS/360 simulation code that included reading (but not writing) OS/360 disks. In the mid-70s the VM370 development significantly enhanced that simulation with approx. another 64kbytes of OS/360 simulation code that included general OS360/MVS disk R/W support. However, before that was included in release and shipped to customers ... the Future System effort imploded http://www.garlic.com/~lynn/submain.html#futuresys there was made rush to get products back into the 370 pipeline and head of POK managed to convince corporate to kill the VM370 product, shutdown the burlington mall development group, and transfer all the people to POK MVS/XA. As part of that everything in Burlington Mall bldg (originally vacant SBC part of the service bureau settlement) that hadn't already shipped to customers ... evaporated/disappeared. Also news of the shutdown/transfer managed to leak early and several people managed to exscape ... many to DEC and the new VAX/VMS effort (including the person primarily responsible for the latest OS/360 simulation enhancements). We used to joke that the CMS OS/360 64kbytes of code (that could have grown to 128kbyte of code) was a much more efficient simulation of OS/360 than the 8mbyte MVS simulation of OS/360
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