Glossary Byte By Chris Mellor - April 20, 2022 TwitterWhatsAppLinkedinReddItEmail Byte – A computing unit consisting of 8 bits and used to encode letters or numbers. Capital C is written as 01000011. A word is 2 bytes (16 bits), a doubleword is 4 bytes (32 bits), and a quadword is 8 bytes (64 bits).