eric-ibmm...@wi.rr.com (Eric Bielefeld) writes: > You're career sounds frighteningly like mine. I started as a systems > programmer in 1978 at Milwaukee County, where I worked before as an > operator and then an applications programmer. We had a 3032 also, but > I thought it came in around 1975 or so. I may be wrong. > > I remember our conversion from VS1 to MVS 3.7, which was in 1978 and > early 79. I think we used a Panvalet product for the editor in VS1. > I liked SPF on MVS 3.7 a lot better. > > I also did VM. I can't remember when I started doing VM, but I know > it was finally retired in Feb. 1999. Then they didn't have to worry > about Y2K on VM, since we were on R5 of VM. > > I remember hearing that there weren't a lot of 3032's made. A lot > more 3033s and 3031s. If I remember right, the 3032 was about the > same speed as a 370/168. > > -- > Eric Bielefeld > Systems Programmer
re: http://www.garlic.com/~lynn/2011p.html#106 SPF in 1978 recent (long-winded) discussion of 3031, 3032, & 3033 (in linkedin IBM Historic Computing group): http://www.garlic.com/~lynn/2011p.html#82 Migration off mainframe 3032 was 370/168-3 with different covers and using external 303x channel director (instead of external 28x0 channels). 303x channel director was 370/158 engine w/o 370 microcode and just the integrated channel microcode (3031 was a pair of 370/158 engines ... one with just the 370 microcode and the other with just the integrated channel microcode). ... and 3033 was 370/168-3 logic mapped to 20% faster chips ... the chips also had ten times the circuits/chip as used in 168 ... initially unused ... some late optimization, limited use of more circuits/chip got 3033 up to 1.5 times 168-3. also discussed in this URL http://www.jfsowa.com/computer/memo125.htm 3031s were being "beat" by 4341s ... past post with early benchmark http://www.garlic.com/~lynn/2000d.html#0 ... faster, cheaper, less floor space, less power, less cooling, etc. some old email mentioning 4341 http://www.garlic.com/~lynn/lhwemail.html#4341 and 4341 clusters were beating 3033, aggregate faster, cheaper, less floor space, less power, less cooling, etc. at one point, POK executive, in some internal politics, got allocation of critical 4341 manufacturing component cut in half. -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
