um...I think one is USB, and one with "whatever" it should call.... I can't remember the name

I think Paraelle?

so?

well, coz I wanna connect both to my computer

I can sure your computer should has USB port.  But if ther other printer use paraelle cable, then your computer needs to have paraelle port then.

but the thing is....in my room I have 2 computer....each computer connect one printer

  You want both computers can access to both printers?

ok....my 1st computer connect with all-in-one printer

my 2nd computer connect with normal printer

and I want my 1st computer can use all-in-one and normal printers