[email protected] (Kirk Talman) writes: > If this is the beast I think it is, it attached only to 360s as a channel > that had outboard channels. Memory (no bit correction) says that was 44, > 65, 75, 91, and 165/8 on 370. May be more. The "programs" were channel > programs. I was told that this was the reason the 44 was created. And > that it was 65 + lobotomy.
bitsavers 360/44 funtional characteristics: http://www.bitsavers.org/pdf/ibm/360/funcChar/A22-6875-5_360-44_funcChar.pdf from above: Although the Model 44 processing unis is about the same in physical size (Figure 1) as that of its nearest neighbor, the Model 50, its performance on problems for which it is optimized is 30 to 60 per cent faster than that of Model 50. .. snip .. and: Processor storage speed for the Model 44 is 1 microsecond. Four bytes (one word or two halfwords) are stored or fetched in each access. Processor stroage, alwasy housed within the CPU, is availabe in the four capacities shown at the top of Figure 3. Data paths throughout the CPU are one word wide. .. snip ... functional characteristic for 360/40 (also on bitsaver) has two-byte datapaths bitsaver is missing 360/50 functional characteristics 360/65 had 8byte data paths with 750ns memory low-end & mid-range 360s (up to 360/50) had integrated channels, higher-end 360s (starting with 360/65) had external channels -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
