What is dell DHM vs DTCA? on mfg tag on bottom of system

[mjashley]

Iam trying to find out what the difference is between Dell Dimension 340 DHM and same for 340 DTCA

 

[Motopsychojdn]

dhm is dell home model
dtca= dont talk crap a55hole?
I reckon I'm right on the first one anyway, have you tried googling it?
Moto