资料来源 : Free On-Line Dictionary of Computing

Intel 8080
     
         The successor to the {Intel 8008}.  The 8080 had a
        16-bit {address bus} and an 8-bit {data bus}.  It had seven
        8-bit {registers} (six which could also be combined as three
        16-bit registers), a 16-bit {stack pointer} to memory which
        replaced the 8008's internal stack and a 16-bit {program
        counter}.  It also had 256 I/O ports (so I/O devices could be
        connected without needing to allocate any addressing space as
        is required for {memory mapped} devices) and a signal pin that
        allowed the {stack} to occupy a separate bank of memory.
     
        Shortly after the 8080, the {Motorola 6800} was introduced.
     
        [Date?]
     
        (1994-10-31)