Bits, Bytes, and Prefixes - AP Computer Science Principles

We begin our Computer Science journey with a few definitions, which I will leave below for your convenience. Bit: A single unit of information, represented by a 0 or 1. Byte: 8 bits. Kilo: Thousand Mega: Million Giga: Billion Tera: Trillion So three terabytes would be 3 trillion bytes or 24 trillion bits.