jim_elli...@ca.ibm.com (Jim Elliott, IBM) writes: > This is a link to a copy of my History of the Mainframe presentation from > last year (not sure why John posted it there). The most current version of > this presentation is on my web site at > http://ibm.com/vm/devpages/jelliott/pdfs/zhistory.pdf
I didn't remember block-mux being on 360 ... it was on 370 for 3330&2305 set-sector (channel disconnect/reconnect in middle of channel program). however, this reference: http://www-03.ibm.com/ibm/history/exhibits/dpd50/dpd50_chronology4.html has 2880 block mux. channel 10feb1970 for models (360) 85 & 195 along with 2305. 2880 had two-byte interface feature that went along with 2305-1 that ran at 3mbyte/sec (presumably it was announced more for its 3mbyte/sec, two-byte feature than for its block mux capability). 2305 announce 28jan1970 http://www-03.ibm.com/ibm/history/exhibits/storage/storage_2305.html -- 42yrs virtualization experience (since Jan68), online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
