[ GLOSSARY DEFINITION ] General Kilobyte One thousand bytes. Also known as: KB Full Definition & Technical Explanation Kilobyte — One thousand bytes.This general term is part of the CompareTech technical dictionary and helps you read specifications, comparisons, and benchmark data across its device database.See also: Terabyte Megabyte. Related Technical Terms Megabyte One million bytes. General Terabyte One thousand gigabytes. General ← All Glossary Terms How We Score → ← Previous Term Next Term →