The expression ‘K’ can stand for a couple of things. It could mean

Kelvin if used with a few numbers to denote a temperature (Kelvin

temps 3D Celsius temps + 273.16). More likely though is its use to

denote the value 1024 ( or in round numbers 1000). It’s been used

widely in computer industry for years & has gradually found it’s

way to other areas of use. 1k is based on the number 1 to the base

2. Each number in this scheme is twice as big as the previous,

hence it’s an ideal scheme to use for computers. The system works

like this, 1,2,4,8,16,32,64,128,256,512,1024, etc. Numbers million

(1,048, 576) & up to a billion are Giga (G). There are

abreviations for larger groups also, the next group is called Tera.

Dave