INTEL 8080
\ˈɪntɛl ˈe͡ɪt θˈa͡ʊzənd ən ˈe͡ɪti], \ˈɪntɛl ˈeɪt θˈaʊzənd ən ˈeɪti], \ˈɪ_n_t_ɛ_l ˈeɪ_t θ_ˈaʊ_z_ə_n_d ə_n ˈeɪ_t_i]\
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The successor to the Intel 8008. The 8080 had a16-bit address bus and an 8-bit data bus. It had seven8-bit registers (six which could also be combined as three16-bit registers), a 16-bit stack pointer to memory whichreplaced the 8008's internal stack and a 16-bit programcounter. It also had 256 I/O ports (so I/O devices could beconnected without needing to allocate any addressing space asis required for memory mapped devices) and a signal pin thatallowed the stack to occupy a separate bank of memory.Shortly after the 8080, the Motorola 6800 was introduced.[Date?]
By Denis Howe
