It was a short way of writing a different spelling of the words all correct. Some foreign-born people wrote all correct as o-l-l k-o-r-r-e-c-t, and used the letters O.K.

VOA: special.2010.02.28

Another well known computer word is Google, spelled g-o-o-g-l-e.

VOA: special.2009.04.19

Another well known computer word is Google,spelled g-o-o-g-l-e.

VOA: special.2010.08.01

Professor Irvine-Halliday used a one-watt bright white L.E.D.

VOA: special.2009.12.21

The address is u-s-a-l-e-a-r-n-s dot o-r-g.

VOA: special.2009.01.15