Does anyone have information on a 4-bit microcomputer called the KX-33B . Back in 1979 , with the purchase of a Pet computer you could have received the kx-33b for free from Ancrona . Also I am looking for information on a programmable digital computer that NRI schools offered during the 70's . The front panel of the unit appeared to have sixteen rows of on\off switches for machine code entry . I am guessing that the kit utilized possibly a couple of 7489's for ram . Also any info on units that had similar 16x4 or 16x8 machine entry would be appreciated . thanks, Frank