Short Derry Poems

Refurbished Nursery Rhymes: Hi-ho the derry-o

I've two computers I'd like to sell,
They're old, but they both still work very well.
They are Windows desktops, aka, a PC,
One browses with Firefox,
And one with IE.
I can't recall, now, which is which,
But as near as I can tell,
The latter's in the Acer,
And the former in the Dell.