A thousand bytes is a kilobyte, or KB for short.

Just like a thousand grams is a kilogram or a thousand metres is a kilometre, a thousand bytes is a kilobyte.

A few kilobytes is enough to store a small text document.

A million bytes is a megabyte, or MB for short.

We use MB to mean “megabyte”, but you could also remember it as standing for “a Million Bytes”.

A few megabytes can store a song, or a high-quality picture.