Dado Blade

Can you put a dado blade in most table saws?

I'm shopping online for an inexpensive table saw. Some of them say, "dado capacity 1/2 inch." Others don't mention a dado blade, but they usually say something like, "arbor size 5/8 inch." If it has an arbor (blade opening?) size listed, does that mean that I will be able to put a dado blade in it?

Safely?
If saw s/ accepts 1/2' dado , it should have provision for a table insert which has a slot for the wider dado .
Diameter & arbor size do count.
The arbor size is the diameter of the shaft the sawblade mounts to.
Have both & would not use ( anymore) without proper table insert that allows for proper blade exposure.
Check the saw mfr for accessories.
Dado work is a common use of table saws & should be OK

---