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>" MyNOR is a single board computer that does not have a CPU. Instead, the CPU consists of discrete logic gates from the 74HC series ..."
Isn't that still a CPU just not a integrated chip or microprocessor? Isn't a board with discrete logic gates basically how mainframes and minicomputers such as PDP-11 etc were built before the advent of the "microprocessor"?
Earlier quoted context omitted.
I think the idea is that you use registers and apply the NOR gate multiple times. In this sense the NOR gate is universal, while an OR gate nor a XOR gate are neither universal. I.e. XOR(x,y) = NOR(0, NOR(NOR(x,y), NOR(NOR(x,0),NOR(y,0))))) (maybe not the most minimal version and maybe even wrong)
Fun logic tongue twister: Neither an or gate nor an xor gate are universal
Similarly, any collection of XOR gates is simply a summation mod 2.
I love how the NOR gate is made visibly of two transistors.
Seriously, I wonder if this is a way to make a secure and open computer, by implementing the deepest level of security functionality in slow but visibly trust-able hardware.
I love how the NOR gate is made visibly of two transistors.
Makes it pretty hard to hide an Internet backdoor in it. Seriously, I wonder if this is a way to make a secure and open computer, by implementing the deepest level of security functionality in slow but visibly trust-able hardware.
Besides, people have already demonstrated single-gate backdoors that don't show up in most IC die photos.
I love how the NOR gate is made visibly of two transistors.
Makes it pretty hard to hide an Internet backdoor in it. Seriously, I wonder if this is a way to make a secure and open computer, by implementing the deepest level of security functionality in slow but visibly trust-able hardware.