[1] : The Free On-line Dictionary of Computing (27 SEP 03)

ibm 360
     
         the generic name for the cpus and architecture
        released by ibm in 1964.  the 360 was marketed as a general
        purpose computer with 'all round' functionality - hence 360
        degrees.
     
        models ranged from the 360/20 to the 360/65 and later the
        360/95, with typical memory configurations from 16k to 1024k.
     
        elements of the architecture, such as the basic instruction
        set are still in use on ibm mainframes today.  associated
        operating systems included dos, os/mft and os/mvt.
     
        the 360 architecture was based on an 8-bit byte, 16 general
        purpose registers, 24-bit addressing, and a psw program
        status word including a location counter.
     
        gene amdahl, then an ibm employee, is generally acknowledged
        as the 360's chief architect.  he later went on to found
        amdahl corporaton, a manufacture of pcm mainframe
        equipment.
     
        the 360's predecessors were the smaller ibm 1401 and the
        large ibm 7090 series.
     
        see also abend, alc, bal, big red switch, hcf, mode
        bit, pl360, pl/s.
     
        1999-01-24
     
     
see also:
cpu ibm instruction set mainframes operating systems dos 
os/mft os/mvt byte registers gene amdahl 
amdahl corporaton pcm mainframe ibm 1401 ibm 7090 
abend alc bal big red switch hcf 
mode bit pl360 pl/s 

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