En Argentina usamos "computadora", supongo que en Colombia también.

Here in Colombia is common to use computadora ( or computador is more common), but if you want you can also say ordenador but it's not so common

En Colombia usamos computadora.

En Colombia usamos

Computer: (el) computador

Laptop: (el) portátil

Computador / Computadora / Ordenador are all acceptable according to region.