byte

two million bytes of memory.

Serial.print(b, BYTE) prints b as a single byte followed by a carriage return and a linefeed.

Instead, TINYINT columns should be fetched into 2-byte or 4-byte integer columns.

) would expand the terminology to include byte (usually an 8-digit binary number) and even nybble (half a byte, or 4 binary digits).

all you need to get started with this program is a bare 10K bytes of memory.