Attempt to build a computer using cardboard and brass paper fasteners as the base material for all of the logic circuits. Why? Well, the cardboard is free as my workplace puts it in the dumpster and I do not have the funds to by better material. All of the electronic parts thus far were given to me by a friend who passed away and what better tribute than to build a computer. Except for the ALU all gates are either Nand or Nor using DTL. The transistors used are npn 2n2222 type or pnp 2n3906 as I started having a large stock but now facing the need to buy a lot more for this build to continue. Very large construction is employed as to aid in my learning about logic circuits and also to make it easier to make changes as I find out what does not work. Each gate measures about 0.5 X 1.75 inches on cardboard cutouts. RISC will be required as this is a 4-bit system and the clock speed will be very slow at about 3Hz. The main bus is 8-bits ( 4 for data and 4 for address ).
Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca
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