Today, I encountered a problem: storing MAC address in a MySQL database. MAC addresses (something like “01:23:45:67:78:AB”) contain six hexadecimal (base 16) values. This means each hexadecimal field can store 256 (2 to the power of 8, in base 10) values. It’s 8 bits (= 1 byte) for each value. 6 field x 8 bit…