582
14 Neural Networks and Brains
Fig. 14.4 McCulloch–Pitts
NOT Unit with the
corresponding logic gate
Fig. 14.5 McCulloch–Pitts
AND Unit with the
corresponding logic gate
Fig. 14.6 Logic gates for
NAND and NOR
presence of a pulse of amplitude above a fixed threshold, they are digital devices
as opposed to analog devices, making them far less susceptible to noise. One can
show that any of the logical units can be made by a combination of NAND units
alone. The same is true of NOR units. (The logic gates for these Boolean operations
are shown in Fig. 14.6.)
14 Neural Networks and Brains
Fig. 14.4 McCulloch–Pitts
NOT Unit with the
corresponding logic gate
Fig. 14.5 McCulloch–Pitts
AND Unit with the
corresponding logic gate
Fig. 14.6 Logic gates for
NAND and NOR
presence of a pulse of amplitude above a fixed threshold, they are digital devices
as opposed to analog devices, making them far less susceptible to noise. One can
show that any of the logical units can be made by a combination of NAND units
alone. The same is true of NOR units. (The logic gates for these Boolean operations
are shown in Fig. 14.6.)