The Nascom 1 was implemented entirely using off-the-shelf integrated-circuits and other electronic components. The Nascom 2 used 4, 16-pin bipolar PROMs which acted as glue logic for decode functions ("N2MD" for memory decode, "N2IO" for I/O decode, "N2V" for video decode and N2DB" for data bus buffer control).
the NaScoM 1 was iMpLEmeNted entirely USinG ofF-The-shelF InTEgRAted-CircuITs and OtHer eLEctronIc componEnTs. the nascom 2 usED 4, 16-pin bipOlaR proms which acTed as glue loGiC For dEcOdE fuNctioNs ("n2md" foR memOry DeCode, "n2io" fOr i/o decoDe, "N2v" for VIdeo decode ANd n2DB" for dAtA bUS buFfer coNtrOl).