Kilobyte (KB)
Definition: A kilobyte (symbol: KB) is a multiple of the unit byte for digital information. In the binary system, 1 KB is equal to 1,024 bytes. In the decimal system, 1 KB is equal to 1,000 bytes. The kilobyte is commonly used to measure file sizes.
History/origin: The term "kilobyte" was first used in 1965. It was originally defined as 1,024 bytes, based on the binary system. In 1998, the International Electrotechnical Commission (IEC) introduced the kibibyte (KiB) to represent 1,024 bytes, but the term "kilobyte" is still widely used.
Current use: The kilobyte is primarily used to measure the size of small files, such as text documents, images, and audio clips.
Byte (B)
Definition: A byte (symbol: B) is a unit of digital information that most commonly consists of eight bits. It is the basic unit of storage in computers and is used to represent a single character, such as a letter or number.
History/origin: The term "byte" was coined by Werner Buchholz in 1956. It was originally used to describe a group of bits used to encode a single character.
Current use: The byte is used globally to measure the size of files, memory, and storage. It is the fundamental unit of digital information.