
finally be able to check out this new Animal Crossing fad!” And thus the IC was
born out of convenience.
Pretty much all the ICs we’ll be using in this book were built for old-
timey computers. None of them were ever intended to be used as a musical
instrument. Despite the fact that ICs come in many flavors, they more or less
all look the same. The name of the first integrated circuit we’ll be using is the
CD4093. (Just rolls off the tongue, doesn’t it?)
The CD4093 is called a NAND gate. NAND gates are relatively simple computer
components—we’ll talk about how they work in Chapter 6. For now, all you have
to know is that this was not intended t ...